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Thermosetting system white ink composition of LED flexible strip plate

A technology of white ink and composition, applied in ink, household utensils, applications, etc., can solve the problems of poor flexibility, brittleness, ink yellowing, etc., and achieve the effect of good flexibility

Active Publication Date: 2014-11-12
戴龙飞
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the technology of producing this white solder resist ink is basically developed from the previous solder resist ink on hard board, so its main resin composition is a modified epoxy resin system, so there are two main defects , First, the ink is brittle after curing, has poor flexibility, and is easy to crack after being bent; second, when the ink is reflowed at 220-265°C for 3-5 minutes, because there is more epoxy resin, it will cause Ink yellowing at high temperature

Method used

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  • Thermosetting system white ink composition of LED flexible strip plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] First weigh the following substances by mass percentage:

[0021] 1. Thermosetting resin: acrylic resin 40

[0022] Special resin (refers to one of modified epoxy resin, modified acrylic resin, modified polyester resin)

[0023] 5

[0024] 2. Curing agent and crosslinking agent: amino resin 5

[0025] 3. Inorganic fillers and pigments: talcum powder 5

[0026] 4. White pigment: titanium dioxide 38

[0027] 5. Solvent: PMA 7

[0028] 6. Auxiliaries: leveling agent, defoamer, dispersant, plasticizer, adhesive agent, antioxidant, catalyst 3

[0029] After mixing 40 parts of acrylic resin, 5 parts of epoxy resin, and 7 parts of solvent; Agent, 0.2 part of plasticizer, 0.2 part of adhesive agent, 0.1 part of antioxidant, and 0.5 part of catalyst were successively put into the mixture, mixed evenly in a high-speed disperser, ground by a three-roll machine or a sand mill and filtered through a filter below 10 ...

Embodiment 2

[0031] 1. Thermosetting resin: alkyd resin 35 epoxy resin 8

[0032] 2. Curing agent and crosslinking agent: amino resin 6

[0033] 3. Inorganic fillers and pigments: talcum powder 5

[0034] 4. White pigment: titanium dioxide 38

[0035] 5. Solvent: Isophorone 7

[0036] 6. Auxiliaries: leveling agent, defoamer, dispersant, plasticizer, adhesive agent, antioxidant, catalyst 3

[0037] Mix 40 parts of alkyd resin, 8 parts of epoxy resin with 7 parts of solvent; mix 6 parts of amino resin, 5 parts of talcum powder, 38 parts of titanium dioxide, 1 part of dispersant, 0.5 part of Foaming agent, 0.2 part of plasticizer, 0.2 part of adhesive agent, 0.1 part of antioxidant, and 0.5 part of catalyst are successively put into the mixture, mixed evenly in a high-speed disperser, and filtered through a filter below 10um after grinding by a three-roller machine or a sand mill. A white ink composition for a thermosetting system LED flexible light strip is obtained.

Embodiment 3

[0039] 1. Thermosetting resin: polyester resin 42

[0040] 2. Curing agent and crosslinking agent: amino resin 5.5

[0041] 3. Inorganic fillers and pigments: talcum powder 3

[0042] 4. White pigment: titanium dioxide 40

[0043] 5. Solvent: Isophorone 6.5

[0044] 6. Auxiliaries: leveling agent, defoamer, dispersant, plasticizer, adhesive agent, antioxidant, catalyst 3

[0045] Mix 42 parts of polyester resin with 6.5 parts of solvent; mix 5.5 parts of amino resin, 3 parts of talcum powder, 40 parts of titanium dioxide, 1 part of Plasticizer, 0.2 part of adhesive, 0.1 part of antioxidant and 0.5 part of catalyst were put into the mixture successively, mixed evenly in a high-speed disperser, and filtered through a three-roll machine or a sand mill to grind the filter below 10um to obtain a thermosetting system LED soft Light strip white ink composition.

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Abstract

The invention relates to the technical field of LED strip plate printing on a flexible circuit board, and discloses a thermosetting system white ink composition of an LED flexible strip plate. The thermosetting system white ink composition is mainly prepared by the components as follows: thermosetting resin, curing agent and cross-linking agent, inorganic filler and coloring material, white pigment, solvent and auxiliaries, wherein the weight ratio of the thermosetting resin to the curing agent and cross-linking agent to the inorganic filler and coloring material to the white pigment to the white pigment to the solvent to the auxiliaries is (20 to 50):(3 to 25):(0 to 20):(25 to 50):(0 to 20):(0.01 to 10). The invention aims to provide the thermosetting white ink composition which has the advantages of relatively high flexibility, soldering resistance and capability of being prevented from yellowing.

Description

technical field [0001] The invention relates to the technical field of printing LED light strips in flexible circuit boards, in particular to a white ink composition for thermosetting LED flexible light strips. Background technique [0002] With the implementation of energy saving and consumption reduction, the LED lighting market is becoming more and more widely used. The LED light strip is composed of a flexible circuit board, and the surface is coated with white solder resist ink. Firstly, the white ink can fully reflect the LED light without affecting the light color; secondly, it makes the light bar appear clean. [0003] At present, the technology of producing this white solder resist ink is basically developed from the previous solder resist ink on hard board, so its main resin composition is a modified epoxy resin system, so there are two main defects , First, the ink is brittle after curing, has poor flexibility, and is easy to crack after being bent; second, when ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/00C09D11/107C09D11/102C09D11/104C09D11/105
Inventor 戴龙飞
Owner 戴龙飞
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