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Alkali-resistant protective ink and application thereof

A technology for protecting ink and alkali resistance, applied in ink, application, household appliances, etc., can solve the problems of not meeting the alkali resistance requirements of alkali polishing process and removing cleanliness.

Active Publication Date: 2020-07-07
广州亦盛环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although this kind of ink improves the alkali resistance by neutralizing the acrylic resin with alkali, its cured film will be detached from the sodium hydroxide solution at 50-60°C for about 10 minutes when the pH is below 13, which is far from satisfactory. Alkali resistance requirements of alkali polishing process

Method used

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  • Alkali-resistant protective ink and application thereof

Examples

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Embodiment 1

[0069] This embodiment provides a kind of alkali-resistant protective ink, including component A and component B, by weight, component A includes: biphenyl epoxy resin (YX-4000) 30 parts, phenolic resin (PR 612 / 80B) 20 parts, barium sulfate (5000 mesh) 34 parts, talc powder (3000 mesh) 6 parts, black color paste 2 parts, silicone defoamer 2 parts, silicone leveling agent 1 part, isophorone 25 and DBE 5;

[0070] Component B: 12 ​​parts of epoxy resin modified cycloaliphatic amine (Rich Chemical R-2259).

Embodiment 2

[0072] This embodiment provides an alkali-resistant protective ink, including component A and component B, by weight, component A includes: 40 parts of dicyclopentadiene epoxy resin (HP-7200H), phenolic resin (PR 401 / 72B) 20 parts, barium sulfate (8000 mesh) 21 parts, talc powder (5000 mesh) 9 parts, black color paste 2 parts, silicone defoamer 2 parts, silicone leveling agent 1 part, isoflurane 25 parts of ketone and 5 parts of DBE;

[0073] Component B: 12 ​​parts of epoxy resin modified cycloaliphatic amine (Rich Chemical R-2259).

Embodiment 3

[0075] This embodiment provides an alkali-resistant protective ink, including component A and component B, by weight, component A includes: 20 parts of bisphenol A type epoxy resin (NPSN-136X80), phenolic resin (EP 560) 40 parts, barium sulfate (5000 mesh) 28 parts, talcum powder (3000 mesh) 7 parts, black color paste 1 part, silicone defoamer 1 part, silicone leveling agent 0.5 part, isophorone 25 copies and 5 copies of DBE;

[0076] Component B: 12 ​​parts of epoxy resin modified cycloaliphatic amine (Rich Chemical R-2259).

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Abstract

The invention provides alkali-resistant protective ink and an application thereof. The alkali-resistant protective ink comprises a component A and a component B, wherein the component A comprises thefollowing components in parts by weight: 20-40 parts of epoxy resin, 20-40 parts of phenolic resin, 30-40 parts of inorganic filler, a solvent and a cosolvent; the component B is a curing agent, and the molar ratio of an epoxy group in the epoxy resin to a reaction group in the curing agent is 1: (1-1.2); wherein the epoxy equivalent of the epoxy resin is 200-300g / eq, and the inorganic filler is composed of a granular inorganic filler and a flaky inorganic filler. According to the invention, the epoxy resin and the phenolic resin with specific epoxy equivalents and the inorganic filler with specific components are matched with each other in a specific ratio, so that the obtained ink has a good alkali-resistant effect and is easy to demold. The alkali-resistant protective ink can be printedon glass, and plays a role in protecting the glass in a glass alkali polishing process.

Description

technical field [0001] The invention belongs to the technical field of protective ink, and in particular relates to an alkali-resistant protective ink and its application. Background technique [0002] In recent years, mobile electronic products such as smartphones have developed rapidly, and glass is an indispensable part of these products, and is used as a screen or cover. Before the glass is finally assembled on the product, it needs to go through multiple processing procedures. Unprotected glass is easily scratched during the cutting and edging process, and it needs subsequent processing such as flat grinding to eliminate the scratches, which is time-consuming and laborious. Therefore, it is necessary to protect the non-processing surface of the glass before processing. [0003] Common glass protection methods include attaching a protective film, coating a peelable protective glue, and printing protective ink. Among them, protective ink, as a functional material, can p...

Claims

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Application Information

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IPC IPC(8): C09D11/102C09D11/103C09D11/03
CPCC09D11/102C09D11/103C09D11/03
Inventor 包亚群黄健
Owner 广州亦盛环保科技有限公司
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