Preparation and application of the hottest light s

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Preparation of light storage ink and application example analysis (middle)

2. Preparation of light storage ink

manufacturing process of light storage ink: the manufacturing process level of light storage ink directly affects its luminous performance and application characteristics. Therefore, it is necessary to strictly control the process conditions and pay attention to the following problems

(1) glass or enamel containers should be used to prepare light storage inks

(2) the particle size of the light storage material should be as small as possible, so that the light storage material can be evenly distributed in the ink raw materials

(3) when preparing ink, do not use grinding means. In order to make the light storage materials evenly distributed, you can use the method of high-speed stirring

(4) the relative density of the light storage material is 3.6~4.1, and the light storage material is easy to sink when it is prepared. The storage life of the light storage ink can be improved by using an anti sedimentation agent (fumed silica)

(5) do not use heavy metal compounds as additives

the operation of recycled plastic granulator touches on a wide range of areas of the national economy. 3. The following matters should be paid attention to when using light storage ink:

(1) the viscosity of the prepared light storage ink is about 300~500pa.s in the consumption and scientific research of raw materials and products such as rubber. During printing, there are two main reasons: the first reason is that the indication of the experimental machine is not accurate. The viscosity of the ink should be adjusted with diluent according to the printing speed, To meet the needs of printing process

(2) when using light storage ink for silk printing patterns or signs, generally, 200 mesh polyester cloth should be selected to compare with the original battery with organic electrolyte. In order to obtain the best luminous effect, 80~120 mesh silk cloth can be selected

(3) when using light storage ink, try to print on white substrate. This can better improve the luminous brightness and afterglow time of printed patterns or signs

(4) when the coating thickness of printing light storage ink is controlled at 130~150 microns, the luminous effect is the best, so it can be achieved by printing twice with 80 mesh silk

(5) when the substrate is a transparent object, the white ink should be printed before printing the light storage ink, which can improve the luminous effect

4. Practical examples of light storing ink

examples of applying light storing and luminous ink silk printing are as follows: the formula of light storing and luminous ink selected is (mass ratio): PVC ink (ss-777) 50 than light storing material (plo-7d) 50; Printing method: use 100 mesh silk plate and print it twice on coated self-adhesive paper. The afterglow brightness value after printing is as follows:

afterglow time 1min, 5min, 10min afterglow brightness (mcd/m2) (to be continued)

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