CN104099193A - Water-based glass cleaning agent, preparation method and application in mobile phone lens cleaning - Google Patents
Water-based glass cleaning agent, preparation method and application in mobile phone lens cleaning Download PDFInfo
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 75
- 239000012459 cleaning agent Substances 0.000 title claims abstract description 61
- 239000011521 glass Substances 0.000 title claims abstract description 49
- 238000004140 cleaning Methods 0.000 title claims abstract description 30
- 238000002360 preparation method Methods 0.000 title claims abstract description 21
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims abstract description 78
- 239000002994 raw material Substances 0.000 claims abstract description 37
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 claims abstract description 24
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000008213 purified water Substances 0.000 claims abstract description 16
- 239000000203 mixture Substances 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 9
- 230000006378 damage Effects 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 231100000053 low toxicity Toxicity 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 6
- KMUONIBRACKNSN-UHFFFAOYSA-N potassium dichromate Chemical compound [K+].[K+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O KMUONIBRACKNSN-UHFFFAOYSA-N 0.000 description 6
- 239000007788 liquid Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
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- 238000009835 boiling Methods 0.000 description 3
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- 239000000126 substance Substances 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 231100000481 chemical toxicant Toxicity 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
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- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- 208000028571 Occupational disease Diseases 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
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Abstract
Description
技术领域 technical field
本发明涉及清洗剂技术领域，尤其涉及一种水基型玻璃清洗剂、制备方法及其应用。 The invention relates to the technical field of cleaning agents, in particular to a water-based glass cleaning agent, a preparation method and an application thereof. the
背景技术 Background technique
近年来，随着电子行业的快速发展以及智能手机的普及，以大屏幕为代表的智能手机出货量不断增大，智能手机所用的手机镜片对清洁度有较高的要求，在出厂安装前必须经过严格的清洗过程。 In recent years, with the rapid development of the electronics industry and the popularization of smart phones, the shipments of smart phones represented by large screens have continued to increase. The mobile phone lenses used in smart phones have higher requirements for cleanliness. Must go through a rigorous cleaning process. the
现有的用于对该类手机镜片进行清洗的清洗剂的主要原料一般采用硫酸、重铬酸钾等，这类清洗剂虽然清洗效果较好，但是所用原料的毒性高、危险性大，对操作工人的人身健康的危害极大，尤其在工人操作环境比较差、通风效果不良的条件下很容易产生职业病。另外这类清洗剂对环境的污染也很大，为了对其进行深度处理，对处理设备以及工艺的要求较高，增大了企业的生产处理成本。 The main raw materials of the existing cleaning agents used to clean the lens of this type of mobile phone generally adopt sulfuric acid, potassium dichromate, etc. Although the cleaning effect of this type of cleaning agent is better, the toxicity of the raw materials used is high and the risk is large. The hazards to the personal health of the workers are extremely high, especially in the conditions where the operating environment of the workers is relatively poor and the ventilation effect is poor, it is easy to cause occupational diseases. In addition, this type of cleaning agent also pollutes the environment very much. In order to carry out advanced treatment on it, the requirements for treatment equipment and technology are relatively high, which increases the production and treatment cost of the enterprise. the
发明内容 Contents of the invention
本发明的目的是针对现有技术的不足提供一种清洗效果好且低毒、环保，对人体危害小的水基型玻璃清洗剂。 The object of the present invention is to provide a water-based glass cleaning agent with good cleaning effect, low toxicity, environmental protection and little harm to human body. the
本发明的另一目的是提供一种水基型玻璃清洗剂的制备方法及其在手机镜片清洗中的应用。 Another object of the present invention is to provide a preparation method of a water-based glass cleaning agent and its application in cell phone lens cleaning. the
为了实现上述目的，本发明采用以下技术方案。 In order to achieve the above object, the present invention adopts the following technical solutions. the
一种水基型玻璃清洗剂，它由以下重量份的原料组成： A water-based glass cleaning agent, which consists of the following raw materials in parts by weight:
氢氧化钾 20～50份 Potassium hydroxide 20-50 parts
一乙醇胺 2～10份 Monoethanolamine 2～10 parts
N-甲基吡咯烷酮 10～30份 N-Methylpyrrolidone 10～30 parts
纯净水 30～60份。 30-60 parts of purified water.
其中，所述氢氧化钾为白色透明晶体，密度2.044，熔点360℃，沸点1320℃，氢氧化钾呈碱性，防止清洗剂对清洗设备造成腐蚀，多次使用安全有效、成本低，具有较高的经济和社会效益。 Among them, the potassium hydroxide is a white transparent crystal with a density of 2.044, a melting point of 360°C, and a boiling point of 1320°C. High economic and social benefits. the
其中，所述一乙醇胺在室温下为一种无色透明的粘稠液体，熔点为10.5℃，沸点为170℃，在20℃条件下相对密度为1.4540，粘度为24.14mPa.s，是一种重要的有机合成中间体，用作清洗剂的添加剂，能够有效促进各组分之间的相容性，提高使用效果。 Wherein, the monoethanolamine is a colorless and transparent viscous liquid at room temperature, with a melting point of 10.5°C, a boiling point of 170°C, a relative density of 1.4540 at 20°C, and a viscosity of 24.14mPa.s. An important organic synthesis intermediate, used as an additive for cleaning agents, can effectively promote the compatibility between components and improve the use effect. the
其中，所述N-甲基吡咯烷酮为无色透明液体，沸点为204℃，闪点为91℃，吸湿性强，能与水混溶，溶于乙醚，丙酮及各种有机溶剂，为一种优良的高级溶剂，用于清洗剂时清洗效果好。 Among them, the N-methylpyrrolidone is a colorless and transparent liquid with a boiling point of 204°C and a flash point of 91°C. It has strong hygroscopicity, is miscible with water, and is soluble in ether, acetone and various organic solvents. Excellent high-grade solvent, good cleaning effect when used in cleaning agent. the
本发明的各种原料进行混合后，制得的水基型玻璃清洗剂能够快速除去手机镜片上的油污、指纹、灰尘、沥青等物质，不仅保证了良好的清洗速度跟清洗效果，而且清洗后的手机镜片的光亮、美观，清洗后不留痕迹，本发明的水基型玻璃清洗剂主原料氢氧化钾呈碱性，能够有效的防止清洗剂对清洗设备造成腐蚀，多次使用安全有效、成本低，具有较高的经济和社会效益。 After mixing various raw materials of the present invention, the prepared water-based glass cleaning agent can quickly remove oil stains, fingerprints, dust, asphalt and other substances on the lens of the mobile phone, which not only ensures good cleaning speed and cleaning effect, but also The lens of the mobile phone is bright and beautiful, leaving no trace after cleaning. The main raw material of the water-based glass cleaning agent of the present invention, potassium hydroxide, is alkaline, which can effectively prevent the cleaning agent from corroding the cleaning equipment. It is safe and effective for repeated use. Low cost, high economic and social benefits. the
优选的，一种水基型玻璃清洗剂，它由以下重量份的原料组成： Preferably, a water-based glass cleaning agent is composed of the following raw materials in parts by weight:
氢氧化钾 20～35份 Potassium hydroxide 20-35 parts
一乙醇胺 2～6份 Monoethanolamine 2～6 parts
N-甲基吡咯烷酮 10～25份 N-Methylpyrrolidone 10～25 parts
纯净水 30～40份。 30-40 parts of pure water.
另一优选的，一种水基型玻璃清洗剂，它由以下重量份的原料组成： Another preferred, a kind of water-based glass cleaning agent, it is made up of the raw material of following weight part:
氢氧化钾 35～50份 Potassium hydroxide 35-50 parts
一乙醇胺 6～10份 Monoethanolamine 6-10 parts
N-甲基吡咯烷酮 25～30份 N-Methylpyrrolidone 25～30 parts
纯净水 40～60份。 40-60 parts of pure water.
更优选的，一种水基型玻璃清洗剂，它由以下重量份的原料组成： More preferably, a kind of water-based glass cleaning agent, it is made up of the raw material of following weight part:
氢氧化钾 25份 Potassium hydroxide 25 parts
一乙醇胺 4份 Monoethanolamine 4 parts
N-甲基吡咯烷酮 15份 N-Methylpyrrolidone 15 parts
纯净水 35份。 Purified water 35 parts.
另一更优选的，一种水基型玻璃清洗剂，它由以下重量份的原料组成： Another more preferably, a kind of water-based glass cleaning agent, it is made up of the raw material of following weight part:
氢氧化钾 40份 Potassium hydroxide 40 parts
一乙醇胺 8份 Monoethanolamine 8 parts
N-甲基吡咯烷酮 27份 N-Methylpyrrolidone 27 parts
纯净水 50份。 Purified water 50 parts.
本发明的水基型玻璃清洗剂的制备方法，它由以下制备步骤组成： The preparation method of water-based glass cleaning agent of the present invention, it is made up of following preparation steps:
（1）按所述原料配比称取各种原料； (1) Weigh various raw materials according to the ratio of raw materials;
（2）将步骤（1）称取的各种原料混合搅拌均匀，制得水基型玻璃清洗剂。 (2) Mix and stir the various raw materials weighed in step (1) evenly to prepare a water-based glass cleaning agent.
本发明的水基型玻璃清洗剂在手机镜片清洗中的应用，所述水基型玻璃清洗剂的清洗温度为60℃～80℃，在超声波条件下进行清洗。 The application of the water-based glass cleaning agent of the present invention in the cleaning of mobile phone lenses, the cleaning temperature of the water-based glass cleaning agent is 60° C. to 80° C., and the cleaning is performed under ultrasonic conditions. the
优选的，一种水基型玻璃清洗剂在手机镜片清洗中的应用，所述水基型玻璃清洗剂的清洗温度为70℃，在超声波条件下进行清洗。 Preferably, the application of a water-based glass cleaning agent in the cleaning of mobile phone lenses, the cleaning temperature of the water-based glass cleaning agent is 70°C, and the cleaning is performed under ultrasonic conditions. the
与现有技术相比，本发明具有以下优点： Compared with prior art, the present invention has the following advantages:
(1)本发明的水基型玻璃清洗剂，不含硫酸、重铬酸钾等毒性较大的化工原料，属于一种低毒型清洗剂，对人体危害小。 (1) The water-based glass cleaning agent of the present invention does not contain more toxic chemical raw materials such as sulfuric acid and potassium dichromate, belongs to a low-toxic cleaning agent, and has little harm to human body.
（2）本发明的水基型玻璃清洗剂采用氢氧化钾、一乙醇胺、N-甲基吡咯烷酮、纯净水等原料，在使用过程中对水源、空气和土壤均无污染，排放废液可被微生物降解，属于一种环保型清洗剂，对环境污染小。 (2) The water-based glass cleaning agent of the present invention uses potassium hydroxide, monoethanolamine, N-methylpyrrolidone, purified water and other raw materials, and has no pollution to water sources, air and soil during use, and the discharged waste liquid can be Microbial degradation is an environmentally friendly cleaning agent with little environmental pollution. the
（3）本发明的水基型玻璃清洗剂能够快速除去手机镜片上的油污、指纹、灰尘、沥青等物质，不仅保证了良好的清洗速度跟清洗效果，而且清洗后的手机镜片的光亮、美观，清洗后不留痕迹，本发明的水基型玻璃清洗剂主原料氢氧化钾呈碱性，能够有效的防止清洗剂对清洗设备造成腐蚀，多次使用安全有效、成本低，具有较高的经济和社会效益。 (3) The water-based glass cleaning agent of the present invention can quickly remove oil stains, fingerprints, dust, asphalt and other substances on the lens of the mobile phone, which not only ensures good cleaning speed and cleaning effect, but also ensures the brightness and beauty of the lens of the mobile phone after cleaning. , no traces are left after cleaning, the main raw material of the water-based glass cleaning agent of the present invention is alkaline potassium hydroxide, which can effectively prevent the cleaning agent from corroding the cleaning equipment, is safe and effective for multiple uses, and has low cost and high economic and social benefits. the
（4）本发明的制备方法操作简单、所需设备少，原料易得、易于制备，生产成本低，有利于普遍推广应用。 (4) The preparation method of the present invention is simple to operate, requires less equipment, readily available raw materials, easy to prepare, and low production cost, which is conducive to popularization and application. the
具体实施方式 Detailed ways
以下结合具体实施例对本发明进行详细的描述。 The present invention will be described in detail below in conjunction with specific embodiments. the
实施例1。Example 1.
一种水基型玻璃清洗剂，它由以下重量份的原料组成：氢氧化钾20份、一乙醇胺2份、N-甲基吡咯烷酮10份、纯净水30份。 A water-based glass cleaning agent is composed of the following raw materials in parts by weight: 20 parts of potassium hydroxide, 2 parts of monoethanolamine, 10 parts of N-methylpyrrolidone and 30 parts of pure water. the
本实施例的的制备方法，包括以下制备步骤： The preparation method of the present embodiment comprises the following preparation steps:
（1）称取氢氧化钾20份、一乙醇胺2份、N-甲基吡咯烷酮10份、纯净水30份； (1) Weigh 20 parts of potassium hydroxide, 2 parts of monoethanolamine, 10 parts of N-methylpyrrolidone, and 30 parts of purified water;
（2）将步骤（1）称取的各种原料在常温下混合搅拌均匀，制得水基型玻璃清洗剂。 (2) Mix and stir the various raw materials weighed in step (1) evenly at room temperature to prepare a water-based glass cleaning agent.
实施例2。Example 2.
一种水基型玻璃清洗剂，它由以下重量份的原料组成：氢氧化钾35份、一乙醇胺6份、N-甲基吡咯烷酮25份、纯净水40份。 A water-based glass cleaning agent is composed of the following raw materials in parts by weight: 35 parts of potassium hydroxide, 6 parts of monoethanolamine, 25 parts of N-methylpyrrolidone and 40 parts of purified water. the
本实施例的的制备方法，包括以下制备步骤： The preparation method of the present embodiment comprises the following preparation steps:
（1）称取氢氧化钾35份、一乙醇胺6份、N-甲基吡咯烷酮25份、纯净水40份； (1) Weigh 35 parts of potassium hydroxide, 6 parts of monoethanolamine, 25 parts of N-methylpyrrolidone, and 40 parts of purified water;
（2）将步骤（1）称取的各种原料在常温下混合搅拌均匀，制得水基型玻璃清洗剂。 (2) Mix and stir the various raw materials weighed in step (1) evenly at room temperature to prepare a water-based glass cleaning agent.
实施例3。Example 3.
一种水基型玻璃清洗剂，它由以下重量份的原料组成：氢氧化钾50份、一乙醇胺10份、N-甲基吡咯烷酮30份、纯净水60份。 A water-based glass cleaning agent is composed of the following raw materials in parts by weight: 50 parts of potassium hydroxide, 10 parts of monoethanolamine, 30 parts of N-methylpyrrolidone and 60 parts of purified water. the
本实施例的的制备方法，包括以下制备步骤： The preparation method of the present embodiment comprises the following preparation steps:
（1）称取氢氧化钾50份、一乙醇胺10份、N-甲基吡咯烷酮30份、纯净水60份； (1) Weigh 50 parts of potassium hydroxide, 10 parts of monoethanolamine, 30 parts of N-methylpyrrolidone, and 60 parts of purified water;
（2）将步骤（1）称取的各种原料在常温下混合搅拌均匀，制得水基型玻璃清洗剂。 (2) Mix and stir the various raw materials weighed in step (1) evenly at room temperature to prepare a water-based glass cleaning agent.
实施例4。Example 4.
一种水基型玻璃清洗剂，它由以下重量份的原料组成：氢氧化钾25份、一乙醇胺4份、N-甲基吡咯烷酮15份、纯净水35份。 A water-based glass cleaning agent is composed of the following raw materials in parts by weight: 25 parts of potassium hydroxide, 4 parts of monoethanolamine, 15 parts of N-methylpyrrolidone and 35 parts of pure water. the
本实施例的的制备方法，包括以下制备步骤： The preparation method of the present embodiment comprises the following preparation steps:
（1）称取氢氧化钾25份、一乙醇胺4份、N-甲基吡咯烷酮15份、纯净水35份； (1) Weigh 25 parts of potassium hydroxide, 4 parts of monoethanolamine, 15 parts of N-methylpyrrolidone, and 35 parts of purified water;
（2）将步骤（1）称取的各种原料在常温下混合搅拌均匀，制得水基型玻璃清洗剂。 (2) Mix and stir the various raw materials weighed in step (1) evenly at room temperature to prepare a water-based glass cleaning agent.
实施例5。Example 5.
一种水基型玻璃清洗剂，它由以下重量份的原料组成：氢氧化钾40份、一乙醇胺8份、N-甲基吡咯烷酮27份、纯净水50份。 A water-based glass cleaning agent is composed of the following raw materials in parts by weight: 40 parts of potassium hydroxide, 8 parts of monoethanolamine, 27 parts of N-methylpyrrolidone and 50 parts of purified water. the
本实施例的的制备方法，包括以下制备步骤： The preparation method of the present embodiment comprises the following preparation steps:
（1）称取氢氧化钾40份、一乙醇胺8份、N-甲基吡咯烷酮27份、纯净水50份； (1) Weigh 40 parts of potassium hydroxide, 8 parts of monoethanolamine, 27 parts of N-methylpyrrolidone, and 50 parts of purified water;
（2）将步骤（1）称取的各种原料在常温下混合搅拌均匀，制得水基型玻璃清洗剂。 (2) Mix and stir the various raw materials weighed in step (1) evenly at room temperature to prepare a water-based glass cleaning agent.
实施例1-5的水基型玻璃清洗剂的各组分的添加量如表1所示。 The addition amount of each component of the water-based glass cleaning agent of Examples 1-5 is shown in Table 1. the
表1。
按照ROHS Directive2011/65/EU检测标准对实施例1-5制备的水基型玻璃清洗剂进行检测，具体检测结果如表2所示。 According to the ROHS Directive2011/65/EU testing standard, the water-based glass cleaning agent prepared in Examples 1-5 is tested, and the specific testing results are shown in Table 2. the
表2。 Table 2. the
注：（1）1 mg/Kg=1ppm=0.0001% Note: (1) 1 mg/Kg=1ppm=0.0001%
（2）MDL=方法检测上限 (2) MDL = Method Detection Upper Limit
（3）ND=未检测到（＜MDL） (3) ND = not detected (<MDL)
（4）“--”=对含量无要求。 (4) "--" = no requirement on the content.
实施例1-5制备的水基型玻璃清洗剂按照EN 14582:2007方法测定，采用IC进行分析，具体检测结果如表3所示。 The water-based glass cleaning agent prepared by embodiment 1-5 is measured according to EN 14582:2007 method, adopts IC to analyze, and concrete detection result is as shown in table 3. the
表3。 table 3. the
结果分析：本发明的水基型玻璃清洗剂的检测结果完全符合ROHS Directive2011/65/EU检测标准，而且不含硫酸、重铬酸钾等毒性较大的化工原料，属于一种低毒型清洗剂，对人体危害小，不含氟、氯、溴、碘等卤素成分，在使用过程中对水源、空气和土壤均无污染，不会对大气臭氧层造成损害，排放废液可被微生物降解，属于一种环保型清洗剂，对环境污染小,能够快速除去手机镜片上的油污、指纹、灰尘、沥青等物质，不仅保证了良好的清洗速度跟清洗效果，而且清洗后的手机镜片的光亮、美观，清洗后不留痕迹，多次使用安全有效、成本低，具有较高的经济和社会效益。 Result analysis: the test results of the water-based glass cleaning agent of the present invention are in full compliance with the ROHS Directive2011/65/EU test standard, and do not contain toxic chemical raw materials such as sulfuric acid and potassium dichromate, and belong to a low-toxic cleaning agent. It has little harm to the human body, does not contain fluorine, chlorine, bromine, iodine and other halogen components, and has no pollution to water sources, air and soil during use, and will not cause damage to the atmospheric ozone layer, and the discharged waste liquid can be degraded by microorganisms. It belongs to an environmentally friendly cleaning agent, which has little environmental pollution and can quickly remove oil, fingerprints, dust, asphalt and other substances on the lens of the mobile phone. It not only ensures a good cleaning speed and cleaning effect, but also the brightness of the lens after cleaning. It is beautiful, does not leave traces after cleaning, is safe and effective for repeated use, has low cost, and has high economic and social benefits. the
最后应当说明的是，以上实施例仅用于说明本发明的技术方案而非对本发明保护范围的限制，尽管参照较佳实施例对本发明作了详细说明，本领域的普通技术人员应当理解，可以对本发明的技术方案进行修改或者等同替换，而不脱离本发明技术方案的实质和范围。 Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than limit the protection scope of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that Modifications or equivalent replacements are made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention. the
Claims (8)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107937152A (en) * | 2017-10-20 | 2018-04-20 | 安徽奥兹信息科技有限公司 | Eyeglass degreaser and preparation method thereof |
| CN112916501A (en) * | 2021-02-01 | 2021-06-08 | 深圳正和捷思科技有限公司 | Efficient optical filter cleaning process |
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| CN1693439A (en) * | 2004-04-30 | 2005-11-09 | 三洋化成工业株式会社 | Alkali cleaner |
| CN1754953A (en) * | 2004-10-01 | 2006-04-05 | 花王株式会社 | detergent composition |
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| US4276186A (en) * | 1979-06-26 | 1981-06-30 | International Business Machines Corporation | Cleaning composition and use thereof |
| CN1693439A (en) * | 2004-04-30 | 2005-11-09 | 三洋化成工业株式会社 | Alkali cleaner |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107937152A (en) * | 2017-10-20 | 2018-04-20 | 安徽奥兹信息科技有限公司 | Eyeglass degreaser and preparation method thereof |
| CN112916501A (en) * | 2021-02-01 | 2021-06-08 | 深圳正和捷思科技有限公司 | Efficient optical filter cleaning process |
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Address after: 523000 Pu heart village, two row Town, Shek Pai Town, Guangdong, Dongguan Applicant after: Guangdong Jian Xin Polytron Technologies Inc Address before: 523333, Guangdong City, Dongguan province stone Pai Town, Po two road Jintian restaurant, 100 meters on the left, Dongguan Xin Xin Electronic Materials Co., Ltd. Applicant before: Dongguan Jianxin Electronic Material Co., Ltd. |
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