UV (ultraviolet) curing light guiding ink and preparation method thereof

Abstract

The invention belongs to the technical field of preparation of light guiding ink and in particular relates to UV (ultraviolet) curing light guiding ink and a preparation method thereof. The UV curing light guiding ink comprises the following components by mass percent: 10-20% of diffusion particles, 20-30% of acrylic acid resin, 20-30% of methyl methacrylate, 20-30% of methylbenzene and butanone mixed solvent and 1-5% of light initiator dialkylbenzene acetophenone, wherein scattering particles are formed by curing and polymerizing methyl acrylic acid resin, carbamic acid ester, polyalcohol resin and light initiator dialkylbenzene acetophenone by virtue of ultraviolet irradiation. According to the UV curing light guiding ink, the added diffusion particles have an extinction effect and a unique comfortable and smooth handfeel, especially do not absorb UV and do not influence absorbed energy of the light initiator and also can maintain transparency, excellent texture and anti-scraping and wear-resisting effects; and the diffusion particles have good heat resistance and dispersity and can provide excellent optical diffusion effect and good brightness performance.

Description

technical field

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

[0002] The light guide plate is an important part of the backlight module in the liquid crystal panel. When using the light guide ink, the ink is printed into reflective points through screen printing technology, so that the point light source is converted into a surface light source, so that the entire light guide plate can emit light uniformly. Effect.

[0003] The composition of the light guide ink will directly affect the quality of the light guide point, and the quality of the light guide point will directly affect the brightness uniformity of the light guide plate.

[0004] The main problems of the currently used light-guiding inks are that the resulting light-guiding plates have low luminance and poor luminous uniformity, and at the same time, the solvents ...

Examples

Embodiment 1

[0033] Embodiment 1, concrete preparation method is:

[0034] 1. Preparation of diffusion particles: Take a 250 ml Erlenmeyer flask, add 30 grams of methacrylic resin, 10 grams of carbamate, 20 grams of methyl ethyl ketone, 10 grams of butyl acetate, and then add 30 grams of polyol resin. Stirring, stirring speed 1500 rpm, stirring time 10 minutes, then slowly add 2 grams of photoinitiator dialkoxy acetophenone, continue stirring for 10 minutes, then put into a small-sized UV light curing machine for curing, curing time 20 seconds, UV light irradiation intensity is 120 w / cm 2 , the diameter of the diffusing particles is 100 microns.

[0035] 2. Preparation of UV-curable light-guiding ink: Under light-proof conditions, take 30 grams of acrylic resin and 30 grams of methyl methacrylate, dissolve them in a mixed solvent of 30 grams of toluene and butanone, stir at a high speed, and the stirring speed is 1500 rpm, stirring time 15 minutes; then add 20 grams of the prepared diffu...

Embodiment 2

[0036] Embodiment 2, concrete preparation method is:

[0037] 1. Preparation of diffusion particles: take a 250 ml Erlenmeyer flask, add 10 grams of methacrylic resin, 10 grams of carbamate, 14 grams of methyl ethyl ketone, 6 grams of butyl acetate, and then add 50 grams of polyol resin. Stirring, stirring speed 1500 rpm, stirring time 10 minutes, then slowly add 4 grams of photoinitiator dialkoxy acetophenone, continue stirring for 10 minutes, then put into a small-sized UV light curing machine for curing, curing time 10 seconds, UV light irradiation intensity is 120 w / cm 2 , the diameter of the diffusing particles is 10 microns.

[0038] 2. Preparation of UV-curable light-guiding ink: Under light-proof conditions, take 20 grams of acrylic resin and 20 grams of methyl methacrylate, dissolve them in a mixed solvent of 20 grams of toluene and butanone, stir at a high speed, and the stirring speed is 1500 rpm, stirring time 15 minutes; then add 10 grams of the prepared diffusi...

Embodiment 3

[0039] Embodiment 3, concrete preparation method is:

[0040] 1. Preparation of diffusion particles: Take a 250 ml Erlenmeyer flask, add 20 grams of methacrylic resin, 10 grams of carbamate, 27 grams of methyl ethyl ketone, 13 grams of butyl acetate, and then add 40 grams of polyol resin. Stirring, stirring speed 1500 rpm, stirring time 10 minutes, then slowly add 3 grams of photoinitiator dialkoxy acetophenone, continue stirring for 10 minutes, then put into a small UV light curing machine for curing, curing time 15 seconds, UV light irradiation intensity is 120 w / cm 2 , the diameter of the diffusing particles is 50 microns.

[0041] 2. Preparation of UV-curable light-guiding ink: Under light-proof conditions, take 25 grams of acrylic resin and 25 grams of methyl methacrylate, dissolve them in a mixed solvent of 25 grams of toluene and butanone, stir at a high speed, and the stirring speed is 1500 rpm, stirring time 15 minutes; then add 15 grams of the prepared diffusion pa...

technical field

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

[0002] The light guide plate is an important part of the backlight module in the liquid crystal panel. When using the light guide ink, the ink is printed into reflective points through screen printing technology, so that the point light source is converted into a surface light source, so that the entire light guide plate can emit light uniformly. Effect.

[0003] The composition of the light guide ink will directly affect the quality of the light guide point, and the quality of the light guide point will directly affect the brightness uniformity of the light guide plate.

[0004] The main problems of the currently used light-guiding inks are that the resulting light-guiding plates have low luminance and poor luminous uniformity, and at the same time, the solvents ...

Examples

Embodiment 1

[0033] Embodiment 1, concrete preparation method is:

[0034] 1. Preparation of diffusion particles: Take a 250 ml Erlenmeyer flask, add 30 grams of methacrylic resin, 10 grams of carbamate, 20 grams of methyl ethyl ketone, 10 grams of butyl acetate, and then add 30 grams of polyol resin. Stirring, stirring speed 1500 rpm, stirring time 10 minutes, then slowly add 2 grams of photoinitiator dialkoxy acetophenone, continue stirring for 10 minutes, then put into a small-sized UV light curing machine for curing, curing time 20 seconds, UV light irradiation intensity is 120 w / cm 2 , the diameter of the diffusing particles is 100 microns.

[0035] 2. Preparation of UV-curable light-guiding ink: Under light-proof conditions, take 30 grams of acrylic resin and 30 grams of methyl methacrylate, dissolve them in a mixed solvent of 30 grams of toluene and butanone, stir at a high speed, and the stirring speed is 1500 rpm, stirring time 15 minutes; then add 20 grams of the prepared diffu...

Embodiment 2

[0036] Embodiment 2, concrete preparation method is:

[0037] 1. Preparation of diffusion particles: take a 250 ml Erlenmeyer flask, add 10 grams of methacrylic resin, 10 grams of carbamate, 14 grams of methyl ethyl ketone, 6 grams of butyl acetate, and then add 50 grams of polyol resin. Stirring, stirring speed 1500 rpm, stirring time 10 minutes, then slowly add 4 grams of photoinitiator dialkoxy acetophenone, continue stirring for 10 minutes, then put into a small-sized UV light curing machine for curing, curing time 10 seconds, UV light irradiation intensity is 120 w / cm 2 , the diameter of the diffusing particles is 10 microns.

[0038] 2. Preparation of UV-curable light-guiding ink: Under light-proof conditions, take 20 grams of acrylic resin and 20 grams of methyl methacrylate, dissolve them in a mixed solvent of 20 grams of toluene and butanone, stir at a high speed, and the stirring speed is 1500 rpm, stirring time 15 minutes; then add 10 grams of the prepared diffusi...

Embodiment 3

[0039] Embodiment 3, concrete preparation method is:

[0040] 1. Preparation of diffusion particles: Take a 250 ml Erlenmeyer flask, add 20 grams of methacrylic resin, 10 grams of carbamate, 27 grams of methyl ethyl ketone, 13 grams of butyl acetate, and then add 40 grams of polyol resin. Stirring, stirring speed 1500 rpm, stirring time 10 minutes, then slowly add 3 grams of photoinitiator dialkoxy acetophenone, continue stirring for 10 minutes, then put into a small UV light curing machine for curing, curing time 15 seconds, UV light irradiation intensity is 120 w / cm 2 , the diameter of the diffusing particles is 50 microns.

[0041] 2. Preparation of UV-curable light-guiding ink: Under light-proof conditions, take 25 grams of acrylic resin and 25 grams of methyl methacrylate, dissolve them in a mixed solvent of 25 grams of toluene and butanone, stir at a high speed, and the stirring speed is 1500 rpm, stirring time 15 minutes; then add 15 grams of the prepared diffusion pa...