A kind of preparation method of light curing light guide ink

Abstract

The invention belongs to the technical field of light-guiding ink preparation, and in particular relates to a preparation method of light-curing light-guiding ink. The specific steps are: 1) Dissolve 25%-45% acrylic resin, 3%-10% stearic acid or stearate into 30%-45% mixed solvent of toluene and butanone under dark conditions 2) Continue to add 2% to 6% of anti-scratch additive, 8% to 18% of nano light guide powder, 1% to 5% of photoinitiator, and continue to stir for 10 to 20 minutes to prepare Obtain UV curable light guide ink. The light guide ink prepared by the invention has good screen printability, the acrylic resin has good flexibility after UV curing, and has good adhesion to the acrylic plate, and the ink can be improved while maintaining the flexibility by adding scratch-resistant additives. The hardness of the film, its pencil hardness can reach 2H. The preparation method of the invention has simple process, and the prepared light guide ink has good performance.

Description

technical field

[0001] The invention belongs to the technical field of light guide ink preparation, and in particular relates to a preparation method of photocurable light guide ink. Background technique

[0002] The light guide plate is an important part of the backlight module in the LCD panel. When using the light guide ink, the ink is printed into reflective points through the screen printing technology. When the light shines on each light guide point, the reflected light will diffuse to all angles , and then destroy the reflection conditions and emit from the front of the light guide plate, thereby converting the point light source into a surface light source, so as to achieve the effect of making the entire light guide plate emit light uniformly.

[0003] Patent application number 201110213082.4 discloses a UV curing light guide ink and a light guide plate using the ink. The light guide ink includes components: cross-linking reaction between polyurethane acrylic resin...

Examples

Embodiment 1

[0020] Under dark conditions, take 25 grams of acrylic resin and 10 grams of stearic acid and dissolve them in 42 grams of toluene and butanone mixed solvent, stir at high speed, stirring speed 1500, stirring time 10 minutes; then add 2 grams of anti-scratch Auxiliary beeswax, 18 grams of nano light guide powder titanium oxide, 3 grams of photoinitiator dialkoxyacetophenone, and continue to stir for 10 minutes to prepare UV curable light guide ink.

Embodiment 2

[0022] Under dark conditions, take 35 grams of acrylic resin and 3 grams of stearic acid and dissolve them in a mixed solvent of 45 grams of toluene and methyl ethyl ketone, stir at a high speed, the stirring speed is 1500, and the stirring time is 15 minutes; then add 6 grams of anti-scratch Auxiliary organic wax, 10 grams of nano-light guide powder zinc oxide, 1 gram of photoinitiator dialkoxyacetophenone, and continue stirring for 15 minutes to prepare UV curable light guide ink.

Embodiment 3

[0024] Under dark conditions, take 45 grams of acrylic resin and 8 grams of stearic acid and dissolve them in a mixed solvent of 30 grams of toluene and methyl ethyl ketone, stir at a high speed, the stirring speed is 2000, and the stirring time is 20 minutes; then add 4 grams of anti-scratch Auxiliary polyethylene micropowder, 8 grams of nano light guide powder aluminum oxide, 5 grams of photoinitiator dialkoxy acetophenone, and continue to stir for 20 minutes to prepare UV curable light guide ink.

[0025] The present invention preferably uses stearic acid, but also can select stearate for use, as sodium stearate, magnesium stearate, calcium stearate, lead stearate, aluminum stearate, cadmium stearate, stearic acid Ferric acid or potassium stearate, the specific implementation method is with embodiment 1-3.

[0026] The light-guiding ink prepared by the method of the invention has high adhesive force and high uniformity of light-guiding to the transparent substrate made of P...

technical field

[0001] The invention belongs to the technical field of light guide ink preparation, and in particular relates to a preparation method of photocurable light guide ink. Background technique

[0002] The light guide plate is an important part of the backlight module in the LCD panel. When using the light guide ink, the ink is printed into reflective points through the screen printing technology. When the light shines on each light guide point, the reflected light will diffuse to all angles , and then destroy the reflection conditions and emit from the front of the light guide plate, thereby converting the point light source into a surface light source, so as to achieve the effect of making the entire light guide plate emit light uniformly.

[0003] Patent application number 201110213082.4 discloses a UV curing light guide ink and a light guide plate using the ink. The light guide ink includes components: cross-linking reaction between polyurethane acrylic resin...

Examples

Embodiment 1

[0020] Under dark conditions, take 25 grams of acrylic resin and 10 grams of stearic acid and dissolve them in 42 grams of toluene and butanone mixed solvent, stir at high speed, stirring speed 1500, stirring time 10 minutes; then add 2 grams of anti-scratch Auxiliary beeswax, 18 grams of nano light guide powder titanium oxide, 3 grams of photoinitiator dialkoxyacetophenone, and continue to stir for 10 minutes to prepare UV curable light guide ink.

Embodiment 2

[0022] Under dark conditions, take 35 grams of acrylic resin and 3 grams of stearic acid and dissolve them in a mixed solvent of 45 grams of toluene and methyl ethyl ketone, stir at a high speed, the stirring speed is 1500, and the stirring time is 15 minutes; then add 6 grams of anti-scratch Auxiliary organic wax, 10 grams of nano-light guide powder zinc oxide, 1 gram of photoinitiator dialkoxyacetophenone, and continue stirring for 15 minutes to prepare UV curable light guide ink.

Embodiment 3

[0024] Under dark conditions, take 45 grams of acrylic resin and 8 grams of stearic acid and dissolve them in a mixed solvent of 30 grams of toluene and methyl ethyl ketone, stir at a high speed, the stirring speed is 2000, and the stirring time is 20 minutes; then add 4 grams of anti-scratch Auxiliary polyethylene micropowder, 8 grams of nano light guide powder aluminum oxide, 5 grams of photoinitiator dialkoxy acetophenone, and continue to stir for 20 minutes to prepare UV curable light guide ink.

[0025] The present invention preferably uses stearic acid, but also can select stearate for use, as sodium stearate, magnesium stearate, calcium stearate, lead stearate, aluminum stearate, cadmium stearate, stearic acid Ferric acid or potassium stearate, the specific implementation method is with embodiment 1-3.

[0026] The light-guiding ink prepared by the method of the invention has high adhesive force and high uniformity of light-guiding to the transparent substrate made of P...