Modified yellow light absorber, yellow-light-proof adhesive, yellow-light-proof adhesive tape and preparation method of modified yellow light absorber

A technology of absorbents and adhesives, applied in the direction of adhesive additives, non-polymer adhesive additives, adhesives, etc., can solve problems affecting product performance, affecting visual effects, and poor compatibility with polymer adhesives , to achieve the effect of good compatibility

Active Publication Date: 2019-05-10
NINGBO SOKEN CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Phthalocyanine dyes and cyanine dyes mainly absorb light of different bands through electrons or ions that are unstable in different orbits inside them, but there are many hybrid orbitals inside, which are easy to absorb light of other colors, thereby affecting the visual effect. Yellow light is not ideal, adding a large amount of light that is easy to absorb other colors causes poor visual effects, and the compatibility of phthalocyanine and cyanine dyes with polymer adhesives is poor, which seriously affects product performance

Method used

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  • Modified yellow light absorber, yellow-light-proof adhesive, yellow-light-proof adhesive tape and preparation method of modified yellow light absorber
  • Modified yellow light absorber, yellow-light-proof adhesive, yellow-light-proof adhesive tape and preparation method of modified yellow light absorber
  • Modified yellow light absorber, yellow-light-proof adhesive, yellow-light-proof adhesive tape and preparation method of modified yellow light absorber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] (1) Add 4 parts of dimethylcyanine, trimethylcyanine (mass ratio 1:2), 5 parts of N-ethylmorpholine, 20 parts of acetone, and 0.5 parts of dibutyltin dilaurate into a three-necked flask Mix evenly, sonicate at 40°C for 30 minutes, react under magnetic stirring for 3 to 4 hours, filter and dry in vacuum to obtain the modified yellow light absorber;

[0032] (2) Add the modified yellow light absorber prepared above and 1 part of meta-tetra-p-benzenesulfonate porphyrin zinc into 30 parts of toluene, stir the solvent completely at 40°C to 60°C, and then dissolve the above solution Add to 100 parts of SK-1502D, stir for half an hour, and finally add 0.7 parts of Y-75 and stir for 20 minutes to obtain an anti-yellowing adhesive;

[0033] (3) Apply the anti-yellow light adhesive composition prepared above evenly on the release film, the thickness of the coating is 20 μm, dry it in an 85°C drying oven for 2 minutes, and then attach it to the PET black film. Roll, the first eng...

Embodiment 2

[0036] (1) Add 8 parts of dimethylcyanine, trimethylcyanine (mass ratio 1:2), 10 parts of N-ethylmorpholine, 25 parts of acetone, and 0.5 parts of dibutyltin dilaurate into a three-necked flask Mix evenly, sonicate at 40°C for 30 minutes, react under magnetic stirring for 3 to 4 hours, filter and dry in vacuum to obtain the modified yellow light absorber;

[0037] (2) Add the modified yellow light absorber prepared above and 4 parts of meta-tetra-p-benzenesulfonate porphyrin zinc into 20 parts of toluene, stir the solvent completely at 40°C to 60°C, and then dissolve the above solution Add to 100 parts of SK-1502D, stir for half an hour, and finally add 0.5 parts of Y-75 and stir for 20 minutes to obtain an anti-yellowing adhesive;

[0038] (3) Apply the anti-yellow light adhesive composition prepared above evenly on the release film, the thickness of the coating is 20 μm, dry it in an 85°C drying oven for 2 minutes, and then attach it to the PET black film. Roll, the first e...

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PUM

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Abstract

The invention relates to a modified yellow light absorber, a yellow-light-proof adhesive, a yellow-light-proof adhesive tape and a preparation method of the modified yellow light absorber. The modified yellow light absorber is composed of raw materials including, by weight part, 4-8 parts of cyanine dye, 5-10 parts of alicyclic compound, 0.5-1 part of catalysts and 20-30 parts of solvent. The preparation method of the modified yellow light absorber comprises the following steps of uniformly mixing the cyanine dyes, the alicyclic compound, the solvent and the catalysts according to the weight part inside a three-orifice flask, and performing ultrasonic treatment, uniform mixing, filtering and vacuum drying to obtain the required modified yellow light absorber. Compared with the prior art, the preparation method of the modified yellow light absorber has the advantage that, by preparing the modified yellow light absorber with the alicyclic compound and the catalysts, the problem that existing cyanine dyes are poor in yellow-light-proofness when added at a small amount and are prone to absorbing light of other colors and resulting in poor visual effects when added at a large amount canbe solved, and meanwhile the problem of serious influence on product performance due to poor compatibility between existing cyanine dyes and adhesives can be solved.

Description

technical field [0001] The invention relates to the technical field of light-shielding adhesive tapes, in particular to a modified yellow light absorber, an anti-yellow light adhesive, an anti-yellow light adhesive tape and a preparation method thereof. Background technique [0002] The main function of the light-shielding tape is to fix the LCD screen and the backlight module. One of its main functions is to block the excess light leaking from the edge of the optical film. In the ultra-narrow bezel screen design, the width of the light-shielding tape is very narrow, resulting in Part of the light is refracted into the screen through the transparent adhesive layer, causing a bright line to appear on the edge of the screen, affecting the display effect. At the same time, the yellow light in the excess light will cause damage to the eyes of the human body. Relevant studies have shown that long-term direct action of high-energy yellow light around 585nm can cause macular degene...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J11/06C09J7/30C09J7/25C09J133/08
Inventor 江健波纪照辉吴苗苗
Owner NINGBO SOKEN CHEM
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