CN111471536A - Water-based cleaning agent used after optical glass screen printing and application thereof - Google Patents
Water-based cleaning agent used after optical glass screen printing and application thereof Download PDFInfo
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- CN111471536A CN111471536A CN202010404762.3A CN202010404762A CN111471536A CN 111471536 A CN111471536 A CN 111471536A CN 202010404762 A CN202010404762 A CN 202010404762A CN 111471536 A CN111471536 A CN 111471536A
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/88—Ampholytes; Electroneutral compounds
- C11D1/94—Mixtures with anionic, cationic or non-ionic compounds
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/0005—Other compounding ingredients characterised by their effect
- C11D3/0073—Anticorrosion compositions
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- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/04—Water-soluble compounds
- C11D3/044—Hydroxides or bases
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- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2075—Carboxylic acids-salts thereof
- C11D3/2086—Hydroxy carboxylic acids-salts thereof
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- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/26—Organic compounds containing nitrogen
- C11D3/30—Amines; Substituted amines ; Quaternized amines
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- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/26—Organic compounds containing nitrogen
- C11D3/33—Amino carboxylic acids
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/36—Organic compounds containing phosphorus
- C11D3/361—Phosphonates, phosphinates or phosphonites
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/72—Ethers of polyoxyalkylene glycols
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- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/88—Ampholytes; Electroneutral compounds
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/88—Ampholytes; Electroneutral compounds
- C11D1/90—Betaines
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Abstract
The invention discloses a water-based cleaning agent used after silk-screen printing of optical glass and application thereof, wherein the water-based cleaning agent comprises the following components in percentage by weight: 1-5% of nonionic surfactant, 0.1-0.5% of amphoteric surfactant, 5-20% of alkaline builder, 1-5% of complexing agent and the balance of deionized water. The technical problems that the alkaline water-based cleaning agent in the prior art damages the surface of the optical glass and silk-screen printing ink to different degrees, the cleaning power is insufficient, the foam is high, the defoaming is slow, the rinsing is not easy, the watermark is remained and the like are solved, the printing ink on the surface of the optical glass and the silk-screen printing ink on the surface of the optical glass can not be corroded, the excellent cleaning capability on pollutants such as oil stains, white dots, grinding powder, polishing powder, finger prints and the like on the silk-screen printed optical glass can be realized, the foam can be inhibited from being generated, the effects of low foam, rapid defoaming and easy rinsing are achieved, and the washed surface of the optical glass has no watermark residue.
Description
Technical Field
The invention relates to the field of cleaning agents, and particularly relates to a water-based cleaning agent used after silk-screen printing of optical glass and application thereof.
Background
The optical glass is mainly used for electronic products such as mobile phones, tablet computers, vehicle-mounted displays and the like, is a glass lens which has the characteristics of high strength, high light transmittance, good toughness, scratch resistance, good dirt repellency, strong water-gathering property and the like, the inner surface of the optical glass can be tightly attached to a touch module and a display screen, the outer surface of the optical glass has enough strength, the functions of protection, product identification and decoration of the display screen, the touch module and the like are achieved, and the optical glass is an important part of consumer electronic products.
Before silk-screen printing, pollutants such as oil stains, white dots, grinding powder, polishing powder, finger prints and the like can be adhered to the surface of the optical glass, and pollutants such as ink dirt, dust and the like can be increased after silk-screen printing. The cleanliness of the glass substrate directly affects the quality of the product, and the optical glass after silk-screen printing must be thoroughly cleaned in order to ensure the quality and reliability of the product.
The cleaning agent used for optical glass silk-screen printing at present is mainly an alkaline water-based cleaning agent which is divided into a strong alkaline cleaning agent and a weak alkaline cleaning agent.
In the process of implementing the embodiments of the present application, the inventors of the present application find that the above-mentioned technology has at least the following technical problems: (1) the strong alkaline cleaning agent has better cleaning capability on oil stains, white dots, finger prints and the like, but damages the surface of the glass and part of silk-screen printing ink, and causes the undesirable phenomena of bluing, frosting or ink bubbling, unsmooth lines, falling off and the like of the glass, and the glass is contacted with the cleaning agent; the alkalescent cleaning agent can not damage the surface of the optical glass and the silk-screen printing ink, but has the problems of small white spots of partial pollutants, incapability of removing oil stains and the like caused by insufficient cleaning force; (2) the existing alkaline water-based cleaning agent has the problems of high foam, slow defoaming and difficult rinsing during cleaning, and in order to prevent too much foam in the spraying process, foam inhibitors are added into the cleaning agent, but the foam inhibitors have poorer and poorer defoaming effect in the using process and even basically have no defoaming effect; (3) the surface of the cleaned optical glass has watermark residue.
Disclosure of Invention
The invention mainly aims to provide a water-based cleaning agent for optical glass after silk-screen printing and application thereof, solves the technical problems that the alkaline water-based cleaning agent in the prior art damages the surface of the optical glass and silk-screen printing ink to different degrees, has insufficient cleaning power, high foam, slow defoaming, difficult rinsing, residual watermarks and the like, can not corrode the surface of the optical glass and the silk-screen printing ink on the surface of the optical glass, has excellent cleaning capability on pollutants such as oil stains, white dots, ground powder, polishing powder, fingerprints and the like on the optical glass after silk-screen printing, can inhibit the generation of foam, achieves the effects of low foam, quick defoaming and easy rinsing, and has no residual watermarks on the surface of the cleaned optical glass.
The technical problem to be solved by the invention is realized by the following technical scheme:
a water-based cleaning agent used after silk-screen printing of optical glass comprises the following components in percentage by weight: 1-5% of nonionic surfactant, 0.1-0.5% of amphoteric surfactant, 5-20% of alkaline builder, 1-5% of complexing agent and the balance of deionized water.
Further, the paint comprises the following components in percentage by weight: 2-4% of nonionic surfactant, 0.2-0.4% of amphoteric surfactant, 8-15% of alkaline builder, 2-4% of complexing agent and the balance of deionized water.
Further, the nonionic surfactant is at least one of fatty alcohol-polyoxyethylene ether and alkylphenol ethoxylate.
Further, the fatty alcohol-polyoxyethylene ether is selected from at least one of AEO-7 and AEO-9, and the alkylphenol polyoxyethylene ether is selected from nonylphenol polyoxyethylene ether.
Further, the polyoxyethylene nonyl phenyl ether is selected from at least one of NP-7 and NP-10.
Further, the amphoteric surfactant is at least one selected from the group consisting of an amino acid type amphoteric surfactant and a betaine type amphoteric surfactant.
Further, the betaine-type amphoteric surfactant is sulfobetaine.
Further, the betaine type amphoteric surfactant is selected from at least one of dodecyl ethoxy sulfobetaine, dodecyl hydroxypropyl sulfobetaine, and dodecyl sulfopropyl betaine.
Further, the alkali builder is at least one selected from the group consisting of sodium hydroxide, potassium hydroxide, sodium silicate, isopropanolamine, monoethanolamine, diethanolamine, and triethanolamine.
Further, the complexing agent is selected from at least one of sodium gluconate, sodium citrate dihydrate, sodium citrate pentahydrate, tetrasodium EDTA and tetrasodium HEDP.
The invention also provides application of the water-based cleaning agent for optical glass after silk-screen printing in cleaning the optical glass after silk-screen printing.
The invention has the following beneficial effects:
according to the invention, the nonionic surfactant and the amphoteric surfactant in the conventional surfactant are compounded to serve as the surfactant, the surfactant is compatible with the common alkaline builder in the prior art, the proportion of the nonionic surfactant, the amphoteric surfactant and the alkaline builder is controlled, and the components act synergistically to obtain an unexpected technical effect, so that the printing ink on the surface of the optical glass and the surface of the optical glass can not be corroded, the cleaning capability on pollutants such as oil stains, white dots, grinding powder, polishing powder and fingerprints on the optical glass after silk printing is excellent, the generation of foam can be inhibited, the effects of low foam, quick defoaming and easy rinsing can be achieved, and no watermark residue exists on the surface of the cleaned optical glass.
Detailed Description
The raw materials and equipment used in the invention are common raw materials and equipment in the field if not specified; the methods used in the present invention are conventional in the art unless otherwise specified.
Unless otherwise defined, terms used in the present specification have the same meaning as those generally understood by those skilled in the art, but in case of conflict, the definitions in the present specification shall control.
The use of "including," "comprising," "containing," "having," or other variations thereof herein, is meant to encompass the non-exclusive inclusion, as such terms are not to be construed. The term "comprising" means that other steps and ingredients can be added that do not affect the end result. The term "comprising" also includes the terms "consisting of …" and "consisting essentially of …". The compositions and methods/processes of the present invention comprise, consist of, and consist essentially of the essential elements and limitations described herein, as well as any of the additional or optional ingredients, components, steps, or limitations described herein.
All numbers or expressions referring to quantities of ingredients, process conditions, etc. used in the specification and claims are to be understood as modified in all instances by the term "about". All ranges directed to the same component or property are inclusive of the endpoints, and independently combinable. Because these ranges are continuous, they include every value between the minimum and maximum values. It should also be understood that any numerical range recited herein is intended to include all sub-ranges within that range.
As described in the background art, the alkaline water-based cleaning agent in the prior art has the technical problems of damage to the surface of optical glass and screen printing ink in different degrees, insufficient cleaning force, high foam, slow defoaming, difficulty in rinsing, watermark residue and the like, but the reasons for causing the technical problems are not clear, researchers often strive to research and develop new additives such as a defoaming agent, a new complexing agent, a new surfactant and the like, and the inventor finds that a large amount of research shows that the nonionic surfactant and the amphoteric surfactant in the existing surfactant are selected to be compounded and are compatible with the alkaline builder commonly used in the prior art, the proportion of the nonionic surfactant, the amphoteric surfactant and the alkaline builder is controlled, the components synergistically act to obtain unexpected technical effects, the screen printing ink on the surface of the optical glass and the surface of the optical glass can not be corroded, the cleaning agent has excellent cleaning capability on pollutants such as oil stains, white spots, grinding powder, polishing powder, finger prints and the like on the optical glass after silk-screen printing, can inhibit foam generation, achieves the effects of low foam, quick defoaming and easy rinsing, and has no residual water marks on the surface of the cleaned optical glass.
In a first aspect, the water-based cleaning agent used after the silk-screen printing of the optical glass comprises the following components in percentage by weight: 1-5% of nonionic surfactant, 0.1-0.5% of amphoteric surfactant, 5-20% of alkaline builder, 1-5% of complexing agent and the balance of deionized water.
In the examples of the present application, the amount of the nonionic surfactant is 1 to 5% by weight, and for example, may be 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5% or 1.5% by weight, or a range formed by these values.
In the examples of the present application, the nonionic surfactant is not particularly limited, and may be those known to those skilled in the art. Preferably, the nonionic surfactant is at least one of fatty alcohol-polyoxyethylene ether and alkylphenol ethoxylate. The nonionic surfactant has high stability due to containing ether bonds, is not easily damaged by acid and alkaline substances at a high temperature, and is suitable for a cleaning process of optical glass after silk-screen printing. For fatty alcohol-polyoxyethylene ethers, including but not limited to at least one of AEO-7, AEO-9, it is understood that other materials not listed in this example but known to those skilled in the art may be used. For alkylphenol ethoxylates, including but not limited to nonylphenol ethoxylates, it is understood that other materials not listed in this example but known to those skilled in the art may be used. As the nonylphenol polyoxyethylene ether, at least one of NP-7 and NP-10 is preferable but not limited thereto.
In the examples of the present application, the amphoteric surface-active agent is 0.1 to 0.5% by weight, for example, 0.1%, 0.2%, 0.3%, 0.4% or 0.5%, or a range formed by these values.
In the examples of the present application, the zwitterionic surfactant is not particularly limited, and may be those known to those skilled in the art. Preferably, the amphoteric surfactant is at least one selected from the group consisting of an amino acid type amphoteric surfactant and a betaine type amphoteric surfactant. For the amino acid type amphoteric surfactant, it is preferably, but not limited to, sodium dodecylaminopropionate; as the betaine-type amphoteric surfactant, sulfobetaine is preferable but not limited. For sulfobetaines, including but not limited to at least one of dodecyl ethoxy sulfobetaine, dodecyl hydroxypropyl sulfobetaine, dodecyl sulfopropyl betaine, it is understood that other sulfobetaine materials not listed in this example but well known to those skilled in the art may be used.
In the examples, the alkaline builder is 5 to 20% by weight, for example, 5%, 6%, 7%, 8%, 9%, 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, or 20%, or a range formed by these values.
In the examples of the present application, the alkali builder is not particularly limited, and an alkali builder known to those skilled in the art may be used. In terms of detergency, high dissolving power, and cost, the alkali builder is preferably selected from at least one of sodium hydroxide, potassium hydroxide, sodium silicate, isopropanolamine, monoethanolamine, diethanolamine, and triethanolamine, and more preferably, the alkali builder is selected from at least one of sodium hydroxide, sodium silicate, isopropanolamine, and monoethanolamine.
Repeated researches show that the type of the surfactant has an important influence on the performance of the water-based cleaning agent after the optical glass is subjected to silk-screen printing, and the surfactant is prepared by compounding the nonionic surfactant and the amphoteric surfactant.
In the examples, the complexing agent is 1-5% by weight, for example, 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4%, 4.5% or 1.5% by weight, or a range formed by these values.
In the examples of the present application, the complexing agent is not particularly limited, and may be one known to those skilled in the art. Taking complexation force, cleaning force, buffering capacity, cost and the like as selection bases, preferably, the complexation agent is selected from at least one of sodium gluconate, sodium citrate dihydrate, sodium citrate pentahydrate, tetrasodium EDTA and tetrasodium HEDP; more preferably, the complexing agent is selected from at least one of sodium gluconate, sodium citrate pentahydrate and HEDP tetrasodium.
In a second aspect, the application of the water-based cleaning agent for optical glass after silk-screen printing in cleaning the optical glass after silk-screen printing is provided.
By adopting the water-based cleaning agent used after the silk-screen printing of the optical glass in the embodiment of the application, after the optical glass is cleaned after the silk-screen printing, the ink on the surface of the optical glass and the surface of the optical glass can not be corroded, the cleaning capability of pollutants such as oil stains, white dots, ground powder, polishing powder, finger prints and the like on the optical glass after the silk-screen printing is excellent, the generation of foams can be inhibited, the effects of low foam, rapid defoaming and easy rinsing are achieved, and no water mark residue exists on the surface of the cleaned optical glass.
In order to better understand the technical solutions, the technical solutions will be described in detail with reference to specific examples, which are only preferred embodiments of the present invention and are not intended to limit the present invention.
Example 1
A water-based cleaning agent used after silk-screen printing of optical glass comprises the following components in percentage by weight: AEO-92%, dodecyl ethoxy sulfobetaine 0.1%, sodium hydroxide 12%, sodium citrate dihydrate 3%, and the balance of deionized water.
Example 2
A water-based cleaning agent used after silk-screen printing of optical glass comprises the following components in percentage by weight: NP-103%, dodecyl hydroxypropyl sulfobetaine 0.2%, potassium hydroxide 15%, monoethanolamine 5%, EDTA tetrasodium 3%, and the balance deionized water.
Example 3
A water-based cleaning agent used after silk-screen printing of optical glass comprises the following components in percentage by weight: NP-103.0%, dodecyl hydroxypropyl sulfobetaine 0.3%, sodium hydroxide 12.0%, monoethanolamine 3.0%, sodium gluconate 4.0%, and the balance of deionized water.
Example 4
A water-based cleaning agent used after silk-screen printing of optical glass comprises the following components in percentage by weight: AEO-91.0%, NP-102.0%, dodecyl ethoxy sulfobetaine 0.1%, sodium hydroxide 12.0%, isopropanolamine 3.0%, sodium citrate pentahydrate 4%, and the balance of deionized water.
Example 5
A water-based cleaning agent used after silk-screen printing of optical glass comprises the following components in percentage by weight: NP-102.0%, dodecyl hydroxypropyl sulfobetaine 0.5%, potassium hydroxide 13%, monoethanolamine 3.0%, sodium gluconate 4.0%, and the balance of deionized water.
Example 6
A water-based cleaning agent used after silk-screen printing of optical glass comprises the following components in percentage by weight: AEO-71%, sodium dodecyl aminopropionate 0.1%, dodecyl sulfopropyl betaine 0.2%, sodium hydroxide 5%, sodium gluconate 1%, and deionized water in balance.
Example 7
A water-based cleaning agent used after silk-screen printing of optical glass comprises the following components in percentage by weight: NP-75%, sodium dodecyl aminopropionate 0.2%, isopropanolamine 5%, sodium gluconate 1%, HEDP tetrasodium 4%, and the balance of deionized water.
Comparative example 1
A water-based cleaning agent used after silk-screen printing of optical glass comprises the following components in percentage by weight: AEO-91%, NP-101%, dodecyl hydroxypropoxyl sulfobetaine 0.06%, sodium hydroxide 20%, monoethanolamine 3%, EDTA tetrasodium 3%, and the balance deionized water.
Comparative example 2
A water-based cleaning agent used after silk-screen printing of optical glass comprises the following components in percentage by weight: NP-106.0%, dodecyl hydroxypropyl sulfobetaine 0.2%, sodium hydroxide 14%, iso-ethanolamine 3%, sodium gluconate 4%, and the balance of deionized water.
Comparative example 3
Based on example 3, the difference is only that: NP-10 from example 3 was replaced with the anionic surfactant dodecylbenzene sulfonic acid.
Comparative example 4
Based on example 3, the difference is only that: NP-10 from example 3 was replaced with the cationic surfactant dodecyl dimethyl benzyl ammonium chloride.
Comparative example 5
Based on example 3, the difference is only that: the dodecylhydroxypropyl sulfobetaine in example 3 was replaced with the anionic surfactant dodecylbenzene sulfonic acid.
Comparative example 6
Based on example 3, the difference is only that: the dodecyl hydroxypropyl sulfobetaine from example 3 was replaced with the cationic surfactant lauryl trimethyl ammonium chloride.
Comparative example 7
A water-based cleaning agent used after silk-screen printing of optical glass comprises the following components in percentage by weight: 100.8% of NP-100, 0.3% of dodecyl hydroxypropyl sulfobetaine, 12% of sodium hydroxide, 3% of monoethanolamine, 4% of sodium gluconate and the balance of deionized water.
Comparative example 8
A water-based cleaning agent used after silk-screen printing of optical glass comprises the following components in percentage by weight: NP-106%, dodecyl hydroxypropyl sulfobetaine 0.3%, sodium hydroxide 12%, monoethanolamine 3%, sodium gluconate 4%, and the balance of deionized water.
Comparative example 9
A water-based cleaning agent used after silk-screen printing of optical glass comprises the following components in percentage by weight: NP-103%, dodecyl hydroxypropyl sulfobetaine 0.08%, sodium hydroxide 12%, monoethanolamine 3%, sodium gluconate 4%, and the balance of deionized water.
Comparative example 10
A water-based cleaning agent used after silk-screen printing of optical glass comprises the following components in percentage by weight: NP-103.0%, dodecyl hydroxypropyl sulfobetaine 0.6%, sodium hydroxide 12.0%, monoethanolamine 3.0%, sodium gluconate 4.0%, and the balance of deionized water.
Comparative example 11
A water-based cleaning agent used after silk-screen printing of optical glass comprises the following components in percentage by weight: NP-103%, dodecyl hydroxypropyl sulfobetaine 0.3%, monoethanolamine 3%, sodium gluconate 4%, and the balance of deionized water.
Comparative example 12
A water-based cleaning agent used after silk-screen printing of optical glass comprises the following components in percentage by weight: NP-103%, dodecyl hydroxypropyl sulfobetaine 0.3%, sodium hydroxide 12%, monoethanolamine 9%, sodium gluconate 4%, and the balance of deionized water.
Test example
In order to verify the performance of the product of the invention, the optical glass after silk-screen printing is cleaned by the cleaning agent prepared in the examples 1 to 7 and the comparative examples 1 to 12 by adopting the cleaning procedure shown in the table 1, and relevant performance tests are respectively carried out.
TABLE 1 cleaning procedure
The specific test item method and definition level are as follows:
a optical glass surface cleanliness of 4 ＊ 10 times is measured by microscope.
Defining the level: 0-grade non-dirty and small white spot
Grade 1 with little dirt and white spots
Grade 2 has more dirt and small white spots
Visual inspection under spotlight of corrosive black matrix on the surface of B optical glass
Defining the level: grade 0 hairless mask
Mild hair spray grade 1
Grade 2 whole body severe hair spray
C optical glass surface watermark residue black background spotlight down visual inspection
Defining the level: no watermark residue at level 0
Level 1 minimal no watermark
2-stage multi-watermark residue
D screen printing ink damage 4 ＊ 10 times microscope observation
Defining the level: the 0-grade ink has no discoloration, bubbling and falling
The grade 1 ink has slight discoloration and bubbling, but does not fall off
The grade 2 ink has obvious deformation, bubbling and falling
E foam Performance 0.1% foam Performance (mm)50 ℃. + -. 2 ℃ (Roche foam apparatus)
Defining the level: low foam of grade 0
Grade 1 low-medium foam and quick defoaming
2-grade medium-high foam and slow defoaming
See table 2 for specific test results.
TABLE 2
In examples 1 and 2, compared with comparative example 1, the cleaning ability, especially the dirt removing ability, of the water-based cleaning agent is enhanced with the increase of the content of the alkali builder, but the corrosion to the surface and the damage to the ink are enhanced.
Examples 3 and 4 and comparative example 2 show that the content of the nonionic surfactant is correlated with cleanliness and foam performance, and that the watermark residue is more obvious when the content is increased.
Compared with the comparative examples 3-12, the embodiment 3 shows that the unexpected technical effect is achieved by selecting the nonionic surfactant and the amphoteric surfactant to compound, matching with the alkaline builder, controlling the proportion of the nonionic surfactant, the amphoteric surfactant and the alkaline builder, and realizing the synergistic effect of the components, so that the optical glass cleaning agent can not corrode the optical glass surface and the silk-screen printing ink on the optical glass surface, has excellent cleaning capability on pollutants such as oil stains, white dots, grinding powder, polishing powder and fingerprints on the silk-screen printing optical glass, can inhibit the generation of foam, achieves the effects of low foam, quick defoaming and easy rinsing, and has no watermark residue on the cleaned optical glass surface.
The above-mentioned embodiments only express the embodiments of the present invention, and the description is more specific and detailed, but not understood as the limitation of the patent scope of the present invention, but all the technical solutions obtained by using the equivalent substitution or the equivalent transformation should fall within the protection scope of the present invention.
Claims (10)
1. The water-based cleaning agent used after silk-screen printing of the optical glass is characterized by comprising the following components in percentage by weight: 1-5% of nonionic surfactant, 0.1-0.5% of amphoteric surfactant, 5-20% of alkaline builder, 1-5% of complexing agent and the balance of deionized water.
2. The water-based cleaning agent for silk-screen printing of optical glass as claimed in claim 1, wherein the cleaning agent comprises the following components by weight percent: 2-4% of nonionic surfactant, 0.2-0.4% of amphoteric surfactant, 8-15% of alkaline builder, 2-4% of complexing agent and the balance of deionized water.
3. The water-based cleaning agent for optical glass after silk-screen printing as claimed in claim 1 or 2, wherein the nonionic surfactant is at least one of fatty alcohol-polyoxyethylene ether and alkylphenol polyoxyethylene ether.
4. The water-based cleaning agent for optical glass after silk-screen printing as claimed in claim 3, wherein the fatty alcohol polyoxyethylene ether is at least one selected from AEO-7 and AEO-9, and the alkylphenol polyoxyethylene ether is selected from nonylphenol polyoxyethylene ether.
5. The water-based cleaning agent for optical glass after silk-screen printing as claimed in claim 4, wherein the nonylphenol polyoxyethylene ether is at least one selected from NP-7 and NP-10.
6. The water-based cleaning agent for optical glass after silk-screen printing as claimed in claim 1 or 2, wherein the amphoteric surfactant is at least one selected from amino acid type amphoteric surfactants and betaine type amphoteric surfactants.
7. The water-based cleaning agent for optical glass after screen printing as claimed in claim 6, wherein the betaine type amphoteric surfactant is sulfobetaine.
8. The water-based cleaning agent for optical glass after screen printing as claimed in claim 1 or 2, wherein the alkali builder is at least one selected from sodium hydroxide, potassium hydroxide, sodium silicate, isopropanolamine, monoethanolamine, diethanolamine, triethanolamine.
9. The water-based cleaning agent for optical glass after silk-screen printing as claimed in claim 1 or 2, wherein the complexing agent is selected from at least one of sodium gluconate, sodium citrate dihydrate, sodium citrate pentahydrate, tetrasodium EDTA, and tetrasodium HEDP.
10. Use of the water-based cleaning agent for optical glass after silk-screen printing as claimed in any one of claims 1 to 9 for cleaning optical glass after silk-screen printing.
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| CN202010404762.3A CN111471536A (en) | 2020-05-13 | 2020-05-13 | Water-based cleaning agent used after optical glass screen printing and application thereof |
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| CN202010404762.3A CN111471536A (en) | 2020-05-13 | 2020-05-13 | Water-based cleaning agent used after optical glass screen printing and application thereof |
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