阅读说明：本技术 清洗剂及菲林薄膜的清洗方法 (cleaning agent and method for cleaning film ) 是由 周群飞 刘华玉 于 2018-08-01 设计创作，主要内容包括：本发明提供了一种清洗剂及菲林薄膜的清洗方法,涉及电子设备面板生产领域,该清洗剂,按重量百分比计包括以下原料：碱性助剂2％～7％,螯合剂3％～8％,润湿剂7％～13％,渗透剂0.1％～3％,有机溶剂3％～9％,水62％～82％；所述碱性助剂为碱性盐和/或有机胺。利用该清洗剂能够缓解利用现有的强碱性清洗剂清洗打码后的菲林薄膜时损伤油墨功能层,降低菲林薄膜成品率的技术问题,达到提高清洗工序产品良率的目的。(The invention provides a cleaning agent and a cleaning method of a film, and relates to the field of electronic equipment panel production, wherein the cleaning agent comprises the following raw materials in percentage by weight: 2-7% of alkaline auxiliary agent, 3-8% of chelating agent, 7-13% of wetting agent, 0.1-3% of penetrating agent, 3-9% of organic solvent and 62-82% of water; the alkaline auxiliary agent is alkaline salt and/or organic amine. The cleaning agent can relieve the technical problems that the ink functional layer is damaged when the coded film is cleaned by the existing strong-alkaline cleaning agent, the yield of the film is reduced, and the purpose of improving the product yield of the cleaning process is achieved.)

1. The cleaning agent is characterized by comprising the following raw materials in percentage by weight:

2-7% of alkaline auxiliary agent, 3-8% of chelating agent, 7-13% of wetting agent, 0.1-3% of penetrating agent, 3-9% of organic solvent and 62-82% of water;

The alkaline auxiliary agent is alkaline salt and/or organic amine.

2. The cleaning agent according to claim 1, which comprises the following raw materials in percentage by weight:

3 to 6 percent of alkaline auxiliary agent, 4 to 7 percent of chelating agent, 8 to 12 percent of wetting agent, 0.5 to 2 percent of penetrating agent, 4 to 8 percent of organic solvent and 65 to 80.5 percent of water.

3. The cleaning agent according to claim 1, which comprises the following raw materials in percentage by weight:

4-6% of alkaline auxiliary agent, 5-7% of chelating agent, 9-12% of wetting agent, 1-1.5% of penetrating agent, 5-7% of organic solvent and 68-78% of water.

4. The cleaning agent according to any one of claims 1 to 3, wherein the alkaline salt comprises sodium carbonate, sodium metasilicate pentahydrate, and/or sodium phosphate;

Preferably, the organic amine is an alcohol amine, preferably triethanolamine, diethanolamine and/or monoethanolamine.

5. The cleaning agent according to any one of claims 1 to 3, wherein the chelating agent is an organic acid sodium salt;

Preferably, the organic acid sodium salt comprises any one of sodium gluconate, sodium glucoheptonate, sodium citrate, disodium ethylenediaminetetraacetate or tetrasodium ethylenediaminetetraacetate, or a combination of at least two of the foregoing.

6. the cleaning agent according to any one of claims 1 to 3, wherein the wetting agent comprises any one or a combination of at least two of a silicone polyether, a carboxyl alcohol EO-PO block polyether, a fatty alcohol EO-PO block polyether, an alkoxylated wetting agent, or glycerin.

7. the cleaning agent according to any one of claims 1 to 3, wherein the penetrating agent is an isoalcohol polyoxyethylene ether and/or an isoalcohol polyoxyethylene ether.

8. the cleaning agent according to any one of claims 1 to 3, wherein the organic solvent comprises a lower alcohol organic solvent or a lower alcohol ether organic solvent, preferably any one of propylene glycol methyl ether, isohexylene glycol, dipropylene glycol methyl ether or propylene glycol butyl ether or a combination of at least two thereof.

9. A method for cleaning a film, characterized in that a film after code printing is cleaned with a cleaning solution containing the cleaning agent according to any one of claims 1 to 8 to complete the cleaning of the film.

10. The cleaning method according to claim 9, wherein the cleaning agent is 4-8 wt% based on the cleaning solution;

preferably, the film is cleaned in a spraying mode;

Preferably, spraying cleaning fluid on the surface of the film, and then spraying water to clean the film;

preferably, the temperature is 40 plus or minus 3 ℃ and the spraying pressure is 0.7 to 1.2Kg/cm in the process of spraying the cleaning solution²；

Preferably, in the process of spraying water, the temperature is 40 +/-3 ℃, and the spraying pressure is 0.7-1.2Kg/cm²。

Technical Field

the invention relates to the field of electronic equipment panel production, in particular to a cleaning agent and a cleaning method of a film.

Background

with the blowout development of the mobile phone cover plate, the 3D mobile phone is rapidly developed, and at present, in the glass rear cover of the 3D mobile phone, a great part of mobile phone manufacturers adopt a structure that a film (deco-film) and a glass substrate are combined.

before the film is attached to the glass, a glare decorative layer needs to be prepared on the film and the film is subjected to coding treatment. The preparation of film films generally consists of the following steps: wire drawing, NCVM electroplating, silk screen printing, laser coding, cleaning, laser cutting and inspection. The code printing is to trace the film and prevent fool. However, after screen printing and coding, a large amount of ink dust remains on the surface of the film, and meanwhile, dirt such as fingerprint printing, dust points and the like is easily deposited in the screen printing process. If the ink dust and dirt are not effectively treated, the appearance of the product is seriously affected, and the subsequent fit with the glass is also poor.

at present, the method commonly used for removing ink dust is to clean the printed film by using strong alkaline solution containing sodium hydroxide and potassium hydroxide. However, in the cleaning process, the caustic soda and the caustic potash are highly corrosive, which often has destructive influence on the functional ink layer on the film, and further reduces the yield of the film.

In view of the above, the present invention is particularly proposed.

Disclosure of Invention

The invention aims to provide a cleaning agent to solve the technical problems that the ink functional layer is damaged when the existing strong-alkaline cleaning agent is used for cleaning a coded film, and the yield of the film is reduced.

The second purpose of the invention is to provide a film cleaning method, which is simple in process and suitable for industrial production.

in order to achieve the above purpose of the present invention, the following technical solutions are adopted:

The cleaning agent comprises the following raw materials in percentage by weight:

2-7% of alkaline auxiliary agent, 3-8% of chelating agent, 7-13% of wetting agent, 0.1-3% of penetrating agent, 3-9% of organic solvent and 62-82% of water;

The alkaline auxiliary agent is alkaline salt and/or organic amine.

Further, the composite material comprises the following raw materials in percentage by weight:

3 to 6 percent of alkaline auxiliary agent, 4 to 7 percent of chelating agent, 8 to 12 percent of wetting agent, 0.5 to 2 percent of penetrating agent, 4 to 8 percent of organic solvent and 65 to 80.5 percent of water.

Further, the composite material comprises the following raw materials in percentage by weight:

4-6% of alkaline auxiliary agent, 5-7% of chelating agent, 9-12% of wetting agent, 1-1.5% of penetrating agent, 5-7% of organic solvent and 68-78% of water.

Further, the alkaline salt comprises sodium carbonate, sodium metasilicate pentahydrate and/or sodium phosphate;

Preferably, the organic amine is an alcohol amine, preferably triethanolamine, diethanolamine and/or monoethanolamine.

Further, the chelating agent is an organic acid sodium salt;

Preferably, the organic acid sodium salt comprises any one of sodium gluconate, sodium glucoheptonate, sodium citrate, disodium ethylenediaminetetraacetate or tetrasodium ethylenediaminetetraacetate, or a combination of at least two of the foregoing.

Further, the humectant comprises any one or a combination of at least two of a silicone polyether, a carboxyl alcohol EO-PO block polyether, a fatty alcohol EO-PO block polyether, an alkoxylated humectant, or glycerin.

further, the penetrating agent is isomeric alcohol polyoxyethylene ether and/or isomeric alcohol polyoxyethylene ether.

further, the organic solvent comprises a low-carbon alcohol organic solvent or a low-carbon alcohol ether organic solvent, preferably any one of propylene glycol methyl ether, isohexylene glycol, dipropylene glycol methyl ether or propylene glycol butyl ether or a combination of at least two of the propylene glycol methyl ether, the isohexylene glycol, the dipropylene glycol methyl ether and the propylene glycol butyl ether.

the cleaning method of the film utilizes the cleaning solution containing the cleaning agent to clean the film after the code printing, thereby completing the cleaning of the film.

Further, calculated by taking the cleaning liquid as a reference, the weight percentage of the cleaning agent is 4% -8%;

Preferably, the film is cleaned in a spraying mode;

Preferably, spraying cleaning fluid on the surface of the film, and then spraying water to clean the film;

Preferably, the temperature is 40 + -3 deg.C and the spraying pressure is 0.7-1.2 Kg/ml during the process of spraying the cleaning solutioncm²；

Preferably, in the process of spraying water, the temperature is 40 +/-3 ℃, and the spraying pressure is 0.7-1.2Kg/cm²。

Compared with the prior art, the invention has the following beneficial effects:

the cleaning agent provided by the invention can effectively remove residual ink dust on a film after silk-screen printing and coding by selecting the alkaline auxiliary agent, the chelating agent, the wetting agent, the penetrating agent, the organic solvent and the water in a specific ratio.

in the cleaning agent provided by the invention, the alkaline auxiliary agent is an effective component for removing dirt such as ink dust, finger prints and the like; the chelating agent can soften water, remove impurity ions and improve the cleaning effect; the wetting agent can help the alkaline auxiliary agent to be attached to the surface of the printing ink dust, so that the purpose of cleaning the printing ink dust is achieved; the penetrating agent can enable the alkaline auxiliary agent to penetrate between dirt such as ink particles and a base material, so that the alkaline auxiliary agent can fully play a role in removing dirt.

The alkaline auxiliary agent in the invention is alkaline salt and/or organic amine, which has small corrosivity and basically has no corrosivity for the film, and can erode ink dust attached to the surface of the film to a certain extent, so that the ink dust is easy to fall off from the surface of the film. Meanwhile, the bonding force between the silk-screen printing or coding ink functional layer and the film is high, the corrosion effect of the cleaning agent is small, and the cleaning agent does not have any influence on the ink functional layer on the film, so that the cleaning agent is used for cleaning the silk-screen printing or coding film, the ink dust on the surface of the film can be effectively removed, and the damage to other parts of the film is avoided.

the cleaning agent has the characteristics of low foam, strong wettability, strong permeability, high dirt-removing capacity and the like, can clean ink dust, dirt, fingerprint and the like which are remained on the surface of film ink after laser coding, does not influence the reliability of a product, is stable to be more than 4B after being cleaned by a poaching one-hundred-grid test, and meets the use requirement on the reliability of ink functional layers at other parts of the product.

Tests prove that the cleaning agent provided by the invention has the following advantages:

1) The cleaning agent provided by the invention is used for cleaning the film after silk-screen printing or coding, the process flow is simple, the property is stable, the cost is low, and dirt such as ink dust, finger prints and the like on the surface of the film can be removed after cleaning for 5-10 min;

2) in the cleaning process, the cleaning agent has no damage to the ink functional layer of the film, the reliability test on the ink functional layer after cleaning meets the use requirement, and the poaching Baige test can reach more than 4B.

Detailed Description

embodiments of the present invention will be described in detail below with reference to examples, but it will be understood by those skilled in the art that the following examples are only illustrative of the present invention and should not be construed as limiting the scope of the present invention. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.

On one hand, the invention provides a cleaning agent, which comprises the following raw materials in percentage by weight:

2-7% of alkaline auxiliary agent, 3-8% of chelating agent, 7-13% of wetting agent, 0.1-3% of penetrating agent, 3-9% of organic solvent and 62-82% of water;

The alkaline auxiliary agent is alkaline salt and/or organic amine.

the cleaning agent provided by the invention is prepared by adding specific functional components into water: the alkaline auxiliary agent, the chelating agent, the wetting agent, the penetrating agent and the organic solvent can effectively remove residual ink dust on the film after silk-screen printing and coding.

In the cleaning agent provided by the invention, the alkaline auxiliary agent is an effective component of dirt such as ink dust, finger print and the like; the chelating agent can soften water, remove impurity ions and improve the cleaning effect; the wetting agent can help the alkaline auxiliary agent to be attached to the surface of the printing ink dust, so that the purpose of cleaning the printing ink dust is achieved; the penetrating agent can enable the alkaline auxiliary agent to penetrate between dirt such as ink particles and a base material, so that the alkaline auxiliary agent can fully play a role in removing dirt.

the alkaline auxiliary agent in the invention is alkaline salt and/or organic amine, which has small corrosivity and basically has no corrosivity for the film, and can erode ink dust attached to the surface of the film to a certain extent, so that the ink dust is easy to fall off from the surface of the film. Meanwhile, the bonding force between the silk-screen printing or coding ink functional layer and the film is high, the corrosion effect of the cleaning agent is small, and the cleaning agent does not have any influence on the ink functional layer on the film, so that the cleaning agent is used for cleaning the silk-screen printing or coding film, the ink dust on the surface of the film can be effectively removed, and the damage to other parts of the film is avoided.

the cleaning agent has the characteristics of low foam, strong wettability, strong permeability, high dirt-removing capacity and the like, can clean ink dust, dirt, fingerprint and the like which are remained on the surface of film ink after laser coding, does not influence the reliability of a product, is stable to be more than 4B after being cleaned by a poaching one-hundred-grid test, and meets the use requirement on the reliability of ink functional layers at other parts of the product.

Tests prove that the cleaning agent provided by the invention has the following advantages:

1) The cleaning agent provided by the invention is used for cleaning the film after silk-screen printing or coding, the process flow is simple, the property is stable, the cost is low, and dirt such as ink dust, finger prints and the like on the surface of the film can be removed after cleaning for 5-10 min;

2) In the cleaning process, the cleaning agent has no damage to the ink functional layer of the film, the reliability test on the ink functional layer after cleaning meets the use requirement, and the poaching Baige test can reach more than 4B.

in the present invention, the percentage content of the alkaline builder may be, for example, 2%, 3%, 4%, 5%, 6%, or 7% by weight; the percentage of chelating agent may be, for example, 3%, 4%, 5%, 6%, 7% or 8%; the percentage of wetting agent may be, for example, 7%, 8%, 9%, 10%, 11%, 12% or 13%; the percentage of penetrant may be, for example, 0.1%, 0.5%, 1%, 1.5%, 2%, 2.5%, or 3%; the percentage of organic solvent may be, for example, 3%, 4%, 5%, 6%, 7%, 8% or 9%; the percentage of water may be, for example, 62%, 64%, 66%, 68%, 70%, 72%, 74%, 76%, 78%, 80%, or 82%.

in some embodiments of the invention, the alkaline salt comprises sodium carbonate, sodium metasilicate pentahydrate, and/or sodium phosphate; optionally, the organic amine is an alcohol amine, preferably triethanolamine, diethanolamine and/or monoethanolamine. Sodium carbonate, sodium metasilicate pentahydrate, sodium phosphate, triethanolamine, diethanolamine and/or monoethanolamine are selected as alkaline auxiliary agents, so that the effect of cleaning ink dust can be achieved in a short time, and the ink functional layer can be prevented from being damaged due to the over-alkaline condition of the alkaline auxiliary agents.

In some embodiments of the invention, the composition comprises the following raw materials in percentage by weight: 3 to 6 percent of alkaline auxiliary agent, 4 to 7 percent of chelating agent, 8 to 12 percent of wetting agent, 0.5 to 2 percent of penetrating agent, 4 to 8 percent of organic solvent and 65 to 80.5 percent of water. In a further preferred embodiment of the invention, the composition comprises the following raw materials in percentage by weight: 4-6% of alkaline auxiliary agent, 5-7% of chelating agent, 9-12% of wetting agent, 1-1.5% of penetrating agent, 5-7% of organic solvent and 68-78% of water. By further optimizing the raw material proportion of the cleaning agent, the cleaning effect can be further improved, and the dirt such as finger prints, ink dust and the like on the surface of the film can be removed in a shorter time.

In a preferred embodiment of the present invention, the chelating agent is an organic acid sodium salt, and the organic acid sodium salt may be any one or a combination of at least two of sodium gluconate, sodium glucoheptonate, sodium citrate, disodium ethylenediaminetetraacetate, or tetrasodium ethylenediaminetetraacetate.

by selecting the sodium organic acid as the chelating agent, the water can be effectively softened, impurity ions in the water can be removed, and the cleaning effect of the cleaning agent is further improved.

As a preferred embodiment of the invention, the wetting agent comprises any one or a combination of at least two of a silicone polyether, a carboxy alcohol EO-PO block polyether, a fatty alcohol EO-PO block polyether, an alkoxylated wetting agent, or glycerin; for example, the humectant includes any one or a combination of at least two of silicone polyether TEGOPREN 5840, carboxyl alcohol EO-PO block polyether EP2584, fatty alcohol EO-PO block polyether EP2454, alkoxylated humectant NW 342, or glycerin. The wetting property of the cleaning agent can be effectively improved by selecting the specific wetting agent, so that the cleaning agent can better coat the ink dust, and the ink dust can be separated from the film.

As a preferred embodiment of the present invention, the isomeric alcohol polyoxyethylene ether and/or the isomeric alcohol polyoxyethylene ether; for example, the penetrant is isoalcohol polyoxyethylene ether SKYIN 90 and/or isoalcohol polyoxyethylene ether 1309L. The specific penetrant is selected, so that the permeability of the cleaning agent can be further improved, the cleaning agent can be fully soaked between the dirt and the film, and the cleaning effect is improved.

as a preferred embodiment of the present invention, the organic solvent comprises a lower alcohol organic solvent or a lower alcohol ether organic solvent, preferably any one of propylene glycol methyl ether, isohexylene glycol, dipropylene glycol methyl ether or propylene glycol butyl ether, or a combination of at least two thereof.

By selecting the specific organic solvent, the raw materials of the cleaning agent can be fully dissolved, dirt on the surface of the film can be effectively dissolved, and the dirt is separated from the film.

In a second aspect, the invention provides a method for cleaning a film, which comprises the step of cleaning the coded film by using a cleaning solution containing the cleaning agent to complete the cleaning of the film.

the cleaning method provided by the invention has the advantages that the used cleaning agent is alkalescent, the film, operators and equipment cannot be corroded and damaged, meanwhile, the cleaning method is convenient to operate, and compared with the traditional cleaning method using strong alkali, the method is more environment-friendly.

In some embodiments of the present invention, the cleaning agent is present in an amount of 4% to 8% by weight, based on the cleaning solution. In the further advantagein the selected embodiment, the film is cleaned in a spraying mode; preferably, a cleaning solution is sprayed on the surface of the film, and then the film is cleaned by spraying water. Wherein, in the process of spraying the cleaning solution, the temperature can be 40 +/-3 ℃ for example, and the spraying pressure can be 0.7-1.2Kg/cm for example²(ii) a In the process of spraying water, the temperature can be 40 +/-3 ℃ for example, and the spraying pressure can be 0.7-1.2Kg/cm for example²。

The film is cleaned by the diluted cleaning agent, so that the film is more conveniently cleaned by adopting a spraying mode. The cleaning method is adopted, particularly cleaning is carried out by spraying cleaning solution firstly and then spraying water, so that dirt can be effectively removed, dirt can flow in the method, and the dirt can be adhered to the surface of the film again. By setting the spraying temperature, the cleaning activity of the cleaning liquid can be improved, and the washing effect can be further improved by setting the spraying pressure.

The present invention will be described in further detail with reference to examples and comparative examples.