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Reworking liquid for CF Rework color film process and preparation method thereof

A kind of process and technology of color film, which is applied in the direction of photoplate making process, photomechanical equipment, photosensitive material processing and other directions on the pattern surface, to achieve the effect of short peeling time

Pending Publication Date: 2022-03-11
江苏中德电子材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a rework liquid used in the CF Rework color film process and its preparation method, which solves the problem that the current rework liquid needs to be under high temperature conditions to quickly remove the photoresist through surfactants

Method used

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  • Reworking liquid for CF Rework color film process and preparation method thereof
  • Reworking liquid for CF Rework color film process and preparation method thereof
  • Reworking liquid for CF Rework color film process and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A rework liquid used in the CF Rework color film process, including the following percentage raw materials: sodium hydroxide 5%, surfactant 3%, N-methylpyrrolidone 30%, γ-butyrolactone 10%, acetic acid 5% , the balance is water;

[0036] The rework fluid is made by the following steps:

[0037] The above raw materials are weighed and mixed until they are completely dissolved to obtain a rework solution.

[0038] Described tensio-active agent is made by following steps:

[0039] Step A1: Mix aluminum trichloride and carbon tetrachloride evenly, stir at 150r / min and 10°C, add toluene, and react for 1 hour at 40°C to prepare To obtain intermediate 1, intermediate 1 was mixed with deionized water, and refluxed for 10 minutes at a temperature of 110°C to obtain intermediate 2;

[0040] Step A2: Mix intermediate 2, deionized water, and potassium permanganate evenly, and react for 2 hours at a speed of 150r / min and a temperature of 110°C to obtain intermediate 3, and dissol...

Embodiment 2

[0044] A rework liquid used in the CF Rework color film process, including the following percentage raw materials: 10% potassium hydroxide, 4% surfactant, 40% ethylene glycol butyl ether, 13% propylene glycol carbonate, 6% lactic acid, and amount of water;

[0045] The rework fluid is made by the following steps:

[0046] The above raw materials are weighed and mixed until they are completely dissolved to obtain a rework liquid.

[0047] Described tensio-active agent is made by following steps:

[0048] Step A1: Mix aluminum trichloride and carbon tetrachloride evenly, stir at 180r / min, 13°C, add toluene, and react for 1.3h at 43°C. To prepare intermediate 1, mix intermediate 1 with deionized water, and reflux at a temperature of 115°C for 13 minutes to obtain intermediate 2;

[0049] Step A2: Mix intermediate 2, deionized water, and potassium permanganate evenly, and react for 2.5 hours under the conditions of a rotating speed of 180r / min and a temperature of 115°C to obta...

Embodiment 3

[0053] A rework liquid used in the CF Rework color film process, including the following percentage raw materials: sodium bicarbonate 15%, surfactant 5%, dimethyl succinate 50%, benzyl alcohol 15%, hydrogen peroxide 8% , the balance is water;

[0054] The rework fluid is made by the following steps:

[0055] The above raw materials are weighed and mixed until they are completely dissolved to obtain a rework liquid.

[0056] Described tensio-active agent is made by following steps:

[0057] Step A1: Mix aluminum trichloride and carbon tetrachloride evenly, stir at 200r / min, and add toluene at a temperature of 15°C, and react for 1.5h at a temperature of 45°C. To prepare intermediate 1, mix intermediate 1 with deionized water, and reflux at a temperature of 120°C for 15 minutes to obtain intermediate 2;

[0058] Step A2: Mix intermediate 2, deionized water, and potassium permanganate evenly, and react for 3 hours at a rotation speed of 200r / min and a temperature of 120°C to o...

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Abstract

The invention discloses reworking liquid for a CF Rework color film process and a preparation method of the reworking liquid. The reworking liquid comprises the following raw materials in percentage: 5-15% of inorganic alkali, 3-5% of a surfactant, 30-50% of a main solvent, 10-15% of a cosolvent, 5-8% of an activating agent and the balance of water, the preparation method comprises the following steps: treating N epsilon-lauroyl-L-lysine to obtain an intermediate 6, reacting an intermediate 5 with the intermediate 6 to obtain an intermediate 7, brominating isobutanol to obtain an intermediate 8, reacting imidazole with the intermediate 8, reacting with 1-bromododecane, distilling, and reacting a substrate, dibromoethane and the intermediate 7 to obtain the surfactant. The surfactant can well strip the photoresist, does not need a high-temperature environment, and is short in stripping time.

Description

technical field [0001] The invention relates to the technical field of CF color film preparation, in particular to a rework liquid used in the CF Rework color film process and a preparation method thereof. Background technique [0002] Color filter (CF) is a key component of LCD to realize color display, and its basic structure includes glass substrate, BM (black matrix), color photoresist, protective layer (OC), ITO, and gasket. In the CF process, it is inevitable to produce defective CF substrates. Defective CF needs to be reworked with a rework solution to remove the color photoresist and OC adhesive protective layer on the defective CF substrate, so that it can be recycled as a black film or glass substrate to reduce economic losses. However, the color photoresist on the bad substrate is difficult to remove once it is hardened, especially compared with the positive photoresist, the color photoresist is a negative photoresist, which is more difficult to peel off, and an ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03F7/42C07D233/64
CPCG03F7/422C07D233/64
Inventor 何珂汤晓春展红峰
Owner 江苏中德电子材料科技有限公司
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