Thermal color printing application design
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Thermal color-changing coatings are more expensive. In the application design, both the cost of printing and the overall effect of the product must be taken into consideration. Therefore, the reasonable combination of pattern design and color matching is very important. Specifically, the following points should be mastered:
(1) Color-changing printing generally uses a color-changing paint to directly print together with a common paint, and the color-changing paint has a small printing area and is a theme part of the flower pattern, so that the characteristics of the color-changing printing can be obtained, and the amount of the color-changing paint is reduced, saving The cost of printing.
(2) If the color-changing paint and the ordinary paint are used in combination, the difference between the color tone and the changed color tone is larger, and the effect is more obvious. For example, when the color-changing blue paint and the ordinary yellow paint are green, the color change is green-yellow, and the effect is obvious.
(3) In the design of the pattern, it is required to change the color and the color that does not change. The pattern structure should be separated as much as possible to prevent the two from overlapping and produce a changing third color, which seriously affects the overall effect of the pattern.
(4) According to the use of textiles, fabrics with large temperature differences such as towels and summer dresses should be mixed with color-changing paints and ordinary paints as much as possible to make the color-changing color richer, the color-changing effect better, and more effective. The characteristics of the color changing pattern.
(5) Production technology of thermochromic paint printing:
1 Master a certain thickness of the printed layer. In order to obtain a clear color change effect, the printed layer should be slightly thicker so that the color-changing body content on the fabric is slightly increased, and the energy of discoloration is correspondingly increased. However, too thick the printed layer will affect the hand and rubbing fastness of the printed fabric.
2 color paste paint color paste should be used now, especially after adding thickener, the color paste can not be hidden for a long time, so as not to affect the color change effect.
3 The storage temperature of the color changing paint paste is generally 1 to 4 ° C. If the temperature is too high or too low, the color paste may be unstable.
4 The color change coating has a more active molecular structure, and should avoid sunlight, acid and alkali gases during storage.