CN1740298A - Novel semi-aqueous liquid crystal special cleaning agent and its preparation process - Google Patents
Novel semi-aqueous liquid crystal special cleaning agent and its preparation process Download PDFInfo
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- CN1740298A CN1740298A CN 200510044738 CN200510044738A CN1740298A CN 1740298 A CN1740298 A CN 1740298A CN 200510044738 CN200510044738 CN 200510044738 CN 200510044738 A CN200510044738 A CN 200510044738A CN 1740298 A CN1740298 A CN 1740298A
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Abstract
The present invention belongs to the field of chemical product preparing technology. The semi-water base detergent specially for liquid crystal includes two types, including the No. 1 detergent compounded with high boiling point straight chain paraffin as solvent and surfactants and the No. 2 detergent compounded with surfactants, deionized water and inorganic assistant. When the detergent is used, liquid crystal screen is first cleaned via set inside the No. 1 detergent and through ultrasonic treatment to eliminate residual liquid crystal in the surface and gaps of liquid crystal screen, surface oil stain, fingerprint, dust and other contaminants, and then cleaned via set inside the No. 2 detergent added with pure water and at 50-58 deg.c and through ultrasonic treatment to eliminate residual No. 1 detergent. The present invention has high cleaning effect, low cleaning cost and other advantages.
Description
Technical field
The present invention relates to a kind of half aqueous cleaning agent that is used to clean residual liquid crystal in LCD liquid crystal display surface and the slit, substitute ODS material cleaning products, belong to the chemical production field.
Background technology
At present, develop cleaning technique at cleaning industry in order to eliminate the ODS material and mainly contain three kinds: water system cleaning technique, half water system cleaning technique and non-water system cleaning technique.(1) water system cleaning technique: it is to substitute most widely used technology in the cleaning of ODS material that water system is cleaned.The water system clean-out system is mainly by the interfacial activity effect, by clean-out system wetting, soak into the removal pollutent, through emulsification, the dissemination of alkalescence and tensio-active agent, pollutent is peeled off from the substrate surface again.This cleaning technique mainly is the cleaning that is used for the less demanding product of degree of cleaning.Bad to the object cleaning performance that the pollutent contamination is heavier.(2) half water system cleaning techniques: half water system clean-out system is that water and organic solvent add certain amount of surfactant and the clean-out system formed.Organic solvent selects high boiling solvent to use usually, and its inflammable danger is low.Maximum deficiency is to use the half water system clean-out system cleaning after drying of high boiling solvent poor.Use low boiling point solvent half water system clean-out system inflammable and explosive.(3) non-water system cleaning technique: the clean-out system that non-water system is cleaned usefulness have nytron system, ethanol system, silicon system, ester system, fluorine system etc. several, distinguish with uninflammability according to flammable, nytron system, ethanol system, silicon are flammable clean-out system, and all the other are the uninflammability clean-out system.Flammable clean-out system is had relatively high expectations to cleaning equipment and production place, generally selects the explosion-proof type cleaning equipment for use.The price of uninflammability clean-out system is higher, and because the low general requirement of its boiling point is used the vacuum type cleaning equipment.
Summary of the invention
In order to overcome the shortcoming of above-mentioned technology, the invention provides and a kind ofly can effectively remove pollutents such as liquid crystal residual in LCD liquid crystal display surface and the slit, greasy dirt, fingerprint, dust, and can effectively substitute ODS materials such as trichloroethane, fluorine Lyons, harmless, pollution-free, ozonosphere does not have the novel semi-water base detergent specially for liquid crystal of destruction.
The objective of the invention is to be achieved through the following technical solutions.
Two models of clean-out system one cover of the present invention are formed the I clean-out system by high boiling point straight-chain paraffin solvent and several surfactant compound.During use, directly LCD panel is put into the I clean-out system and utilized supersound process, can remove residual liquid crystal in LCD liquid crystal display surface and the slit effectively, wash pollutents such as surface and oil contaminant in the part, fingerprint, dust.Form the II clean-out system by kinds of surface promoting agent, deionized water, inorganic assistant agent.II clean-out system with 12% adds pure water solution, under temperature 50-58 ℃, utilizes supersound process can remove residual I clean-out system in LCD liquid crystal display surface and the slit effectively.
I, II clean-out system proportioning raw materials such as table 1 and table 2, the minimum chemical pure of material purity, deionized water are ultrapure.
Table 1 I cleaning agent formula
| Component | Raw material | Weight percent (%) |
| A B C | The basic ether of the basic ether Nonyl pheno of undecane Nonyl pheno (4) (7) | 82～86 10～13 2～5 |
Table 2 II cleaning agent formula
| Component | Raw material | Weight percent (%) |
| C D E F G H I J | Nonyl pheno (7) basic ether coconut acid diethanolamide lauryl polyoxyethylene (9) ether CH 3(CH 2) 11O(CH 2) 11CH 3Penetrant t (sulfosuccinate dibutyl ester sodium salt) penetrating agent JFC (polyoxyethylene ether compound) fatty alcohol-polyoxyethylene ether phosphoric acid fat deionized water | Amount Yu in the of 7～9 11～13 7～9 7～9 3～5 5～7 1.5～3.5 |
Make I, II clean-out system with the listed raw material of table l table 2, processing step is as follows:
1. deionized water reverse osmosis purifying:
2. carry out I, II number clean-out system composite respectively by proportioning in the table, in 45-60 ℃ of temperature range, heating for dissolving stirs, and mixes.Carry out under the normal pressure;
3. solution left standstill is 24 hours;
4. press filtration;
5. inspection after construction is packed.
Above-mentioned technology is all used conventional equipment, and products obtained therefrom is that the I clean-out system is faint yellow homogeneous transparent liquid, the smell gentleness, and proportion is 0.83 ± 0.02, flash-point 〉=80 ℃.The II clean-out system is faint yellow homogeneous transparent liquid, smell gentleness, viscosity (25 ℃): 〉=100 centipoises, pH value: 8-10, proportion: 1.05 ± 0.05.
This product is applicable to ultrasonic cleaning technology:
1, washing is with the I clean-out system, and under temperature 40-45 ℃, ultrasonic 5～10 minutes/groove recommends 1～2 groove to clean;
2,2% II clean-out system adds pure water solution, and under temperature 50-58 ℃, ultrasonic 5～10 minutes/groove recommends 1～2 groove to clean;
3, water sprays pure pouring, selects temperature 50-58 ℃ for use;
4, ultrasonic with the adverse current pure water, select temperature 50-58 ℃ for use, 5～10 minutes/groove of rinsing, recommend 3～4 groove rinsings:
5, oven dry.
Use the present invention to have the cleaning of reduction cost, improve advantages such as cleaning performance.In producer's test-results: the I clean-out system need not be changed only to be needed to add the II clean-out system of a groove 12% 110,000 LCD panel capable of washing according to Ordinary Wear and Tear.And can remove residual liquid crystal in LCD liquid crystal display surface and the slit effectively, wash pollutents such as surface and oil contaminant in the part, fingerprint, dust.The contrast aqueous cleaning agent, novel half aqueous cleaning agent has better cleaning performance to STN, ColorSTN.
Test-results:
(shown in result be the content of gross weight in the liquid sample) remarks: N.D.=does not detect (being lower than detection limits)
| Sequence number | Project | Unit | The test pole limit value | A |
| 1 | Cadmium (Cd) | ppm | 2 | N.D. |
| 2 | Plumbous (Pb) | ppm | 2 | N.D. |
| 3 | Mercury (Hg) | ppm | 2 | N.D. |
| 4 | Sexavalent chrome (CrVI) | ppm | 2 | N.D. |
| 5 | The Polybrominated biphenyl analysis of experiments | |||
| One bromo biphenyl | ppm | 5 | N.D. | |
| '-dibromobiphenyl | ppm | 5 | N.D. | |
| Three bromo biphenyls | ppm | 5 | N.D. | |
| Tetrabromo biphenyl | ppm | 5 | N.D. | |
| Pentabromo-biphenyl | ppm | 5 | N.D. | |
| Hexabromobiphenyl | ppm | 5 | N.D. | |
| Seven bromo biphenyls | ppm | 5 | N.D. | |
| Octabromo-diphenyl | ppm | 5 | N.D. | |
| Nine bromo biphenyls | ppm | 5 | N.D. | |
| Decabromodiphenyl | ppm | 5 | N.D. | |
| The Poly Brominated Diphenyl Ethers analysis of experiments | ||||
| One bromo biphenyl ether | ppm | 5 | N.D. | |
| '-dibromobiphenyl ether | ppm | 5 | N.D. | |
| Three bromo biphenyl ethers | ppm | 5 | N.D. | |
| Tetrabromo biphenyl ether | ppm | 5 | N.D. | |
| Pentabromo-biphenyl ether | ppm | 5 | N.D. | |
| Hexabromobiphenyl ether | ppm | 5 | N.D. | |
| Seven bromo biphenyl ethers | ppm | 5 | N.D. | |
| Octa-BDE | ppm | 5 | N.D. | |
| Nine bromo biphenyl ethers | ppm | 5 | N.D. | |
| Decabromodiphenyl oxide | ppm | 5 | N.D. |
Embodiment
Embodiment 1: join I, each 100kg of II clean-out system.
One, prescription is as follows: be weight.
| The I clean-out system: | Component | Unit K g |
| A | 85 |
| B C | 12 3 | |
| The II clean-out system: | Component | Unit K g |
| C D E F G H I J | Amount Yu in the of 8 10 884 5. 1.5. |
One, state raw material weighing and mix, be heated to 55 ℃, stirring, normal pressure, mix, transparent liquid; Left standstill press filtration, inspection after construction packing 24 hours.
Above-mentioned technology is used conventional equipment, and products obtained therefrom I clean-out system is faint yellow homogeneous transparent liquid, the smell gentleness, and proportion is 0.83, flash-point 〉=80 ℃.The II clean-out system is faint yellow homogeneous transparent liquid, the smell gentleness, and viscosity (25 ℃): 〉=100 centipoises, pH value: 8, proportion: 1.05 ± 0.05.
Two, this product usability methods, use ultrasonic cleaning technology:
1, washing is with the I clean-out system, and under 40 ℃ of the temperature, ultrasonic 7 minutes/groove recommends 1 groove to clean;
2,2% II clean-out system adds pure water solution, and under 50 ℃ of temperature, ultrasonic 8 minutes/groove recommends 1 groove to clean;
3, water sprays pure pouring, selects 55 ℃ of temperature for use;
4, ultrasonic with the adverse current pure water, select 54 ℃ of temperature for use, 6 minutes/groove of rinsing is recommended 3 groove rinsings;
5, oven dry.
Embodiment 2: join I, each 100kg of II clean-out system.
One, prescription is as follows: be weight.
| The I clean-out system: | Component | Unit K g |
| A B C | 82 10 2 | |
| The II clean-out system: | Component | Unit K g |
| C D E F G H I J | Amount Yu in the of 7 11 7736 2.5. |
Two, the above-mentioned raw materials weighing is mixed, is heated to 55 ℃, stirring, normal pressure, mix, transparent liquid; Left standstill press filtration, inspection after construction packing 24 hours.
Above-mentioned technology is used conventional equipment, and products obtained therefrom I clean-out system is faint yellow homogeneous transparent liquid, the smell gentleness, and proportion is ± 0.02, flash-point 〉=80 ℃.The II clean-out system is faint yellow homogeneous transparent liquid, the smell gentleness, and viscosity (25 ℃): 〉=100 centipoises, pH value: 10, proportion: 1.05 ± 0.05.
Three, product usability methods, use ultrasonic cleaning technology:
1, washing is with the I clean-out system, and under 45 ℃ of the temperature, ultrasonic 10 minutes/groove recommends 2 grooves to clean;
2,2% II clean-out system adds pure water solution, and under 58 ℃ of temperature, ultrasonic 10 minutes/groove recommends 2 grooves to clean;
3, water sprays pure pouring, selects 55 ℃ of temperature for use;
4, ultrasonic with the adverse current pure water, select 54 ℃ of temperature for use, 8 minutes/groove of rinsing is recommended 4 groove rinsings;
5, oven dry.
Claims (2)
1, novel semi-water base detergent specially for liquid crystal is characterized in that, a cover clean-out system comprises two models, and its prescription is as follows: (all being weight percentage)
I clean-out system feed composition
Undecane 82～86%
The basic ether 10～13% of Nonyl pheno (4)
The basic ether 2～5% of Nonyl pheno (7)
II clean-out system feed composition
The basic ether 7～9% of Nonyl pheno (7)
Coconut acid diethanolamide 11～13%
Lauryl polyoxyethylene (9) ether 7～9%
CH
3(CH
2)
11O(CH
2)
11CH
3 7～9％
Penetrant t (sulfosuccinate dibutyl ester sodium salt) 3～5%
Penetrating agent JFC (polyoxyethylene ether compound) 5～7%
Fatty alcohol-polyoxyethylene ether phosphoric acid fat 1.5～3.5%
The deionized water surplus
2, a kind of novel semi-water base detergent specially for liquid crystal preparation technology is characterized in that step is as follows:
A. deionized water reverse osmosis purifying;
B. carry out I, II number clean-out system composite respectively by proportioning in the table, in 45-60 ℃ of temperature range, heating for dissolving stirs, and mixes.Carry out under the normal pressure;
C. solution left standstill is 24 hours;
D. press filtration;
E. inspection after construction is packed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100447389A CN100350030C (en) | 2005-09-15 | 2005-09-15 | Semi-water base detergent specially for liquid crystal and its prepn process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100447389A CN100350030C (en) | 2005-09-15 | 2005-09-15 | Semi-water base detergent specially for liquid crystal and its prepn process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1740298A true CN1740298A (en) | 2006-03-01 |
| CN100350030C CN100350030C (en) | 2007-11-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100447389A Expired - Fee Related CN100350030C (en) | 2005-09-15 | 2005-09-15 | Semi-water base detergent specially for liquid crystal and its prepn process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100350030C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821552A (en) * | 2014-02-28 | 2014-05-28 | 山东科技大学 | Dust falling agent for falling coal dust through pray mist |
| CN105132930A (en) * | 2015-09-28 | 2015-12-09 | 苏州龙腾万里化工科技有限公司 | Semi-aqueous metal cleaning agent |
| CN105255621A (en) * | 2015-09-27 | 2016-01-20 | 常州市奥普泰科光电有限公司 | Preparation method of semi water-based liquid crystal cleaning compound |
| CN112500934A (en) * | 2020-12-22 | 2021-03-16 | 苏州柏越纳米科技有限公司 | Neutral semi-water-based liquid crystal glass cleaning agent and cleaning method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101565831B (en) * | 2009-04-30 | 2012-01-18 | 深圳市科玺化工有限公司 | Cyclic renewable water-based cleaning agent and cyclic renewing technology |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1069694C (en) * | 1998-01-20 | 2001-08-15 | 山东大学 | Aqueous cleaning agent composite |
| CN1162525C (en) * | 2001-04-30 | 2004-08-18 | 山东大学 | A kind of water-based liquid crystal cleaning composition |
| US20050032657A1 (en) * | 2003-08-06 | 2005-02-10 | Kane Sean Michael | Stripping and cleaning compositions for microelectronics |
| TWI365491B (en) * | 2003-12-24 | 2012-06-01 | Kao Corp | Composition for cleaning semiconductor device |
-
2005
- 2005-09-15 CN CNB2005100447389A patent/CN100350030C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821552A (en) * | 2014-02-28 | 2014-05-28 | 山东科技大学 | Dust falling agent for falling coal dust through pray mist |
| CN103821552B (en) * | 2014-02-28 | 2016-04-06 | 山东科技大学 | A kind of spraying sedimentation coal dust dustfall agent |
| CN105255621A (en) * | 2015-09-27 | 2016-01-20 | 常州市奥普泰科光电有限公司 | Preparation method of semi water-based liquid crystal cleaning compound |
| CN105132930A (en) * | 2015-09-28 | 2015-12-09 | 苏州龙腾万里化工科技有限公司 | Semi-aqueous metal cleaning agent |
| CN112500934A (en) * | 2020-12-22 | 2021-03-16 | 苏州柏越纳米科技有限公司 | Neutral semi-water-based liquid crystal glass cleaning agent and cleaning method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100350030C (en) | 2007-11-21 |
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Granted publication date: 20071121 Termination date: 20091015 |