Extinction liquid for lens anti-dazzling screen, extinction lens anti-dazzling screen and preparation method and application of extinction lens anti-dazzling screen

Abstract

The invention provides an extinction liquid for a lens anti-dazzling screen, an extinction lens anti-dazzling screen and a preparation method and application of the extinction liquid, and belongs to the technical field of anti-dazzling screens, the extinction liquid comprises alkali liquor, a matting agent and water, through reasonable matching of the three components, the obtained extinction liquid can effectively extinction the lens anti-dazzling screen at a low temperature, and the extinction effect of the lens anti-dazzling screen is improved. Particularly, the extinction effect on the vertical lifting position of the lens anti-dazzling screen is very obvious, the alkali decrement of the extinction lens anti-dazzling screen obtained after extinction treatment is appropriate, and the yield is high; meanwhile, the matting liquid also has the characteristics of simple matting process, weaker corrosivity, environment friendliness, no toxicity and the like.

Description

Technical Field

[0001] The invention belongs to the technical field of shading sheets, and in particular relates to a matting liquid for a lens shading sheet, a matting lens shading sheet, and a preparation method and application thereof. Background Art

[0002] When the lens is assembled into a set, a shading sheet will be used in the middle. The middle base material of the shading sheet is PET material, and the top and bottom are carbon coated. After precise punching, the cut surface, i.e. the vertical surface (referring to the inner hole section of the shading sheet after stamping), presents a lens effect. The light is reflected by the smooth cut surface, causing stray light of the lens, which seriously affects the imaging quality of the lens. Therefore, it is very important to perform matte treatment on the lens shading sheet.

[0003] CN114296297A discloses a method for matting the inner wall of the light-through hole of a mobile phone lens shading plate, comprising mixing an alkaline corrosive solution and a surface active agent, sodium dodecylbenzene sulfonate, and soaking the shading plate at high temperature, followed by pickling, cleaning, and drying, thereby obtaining a shading plate with a concave and convex surface to achieve a matting effect; however, this method is not only cumbersome in process, but also causes severe corrosion on the surface of the shading plate, and the method will also damage part of the shading plate, seriously affecting the yield.

[0004] Therefore, in order to solve the above problems, it is of great research value to develop a matting liquid that can effectively matte the vertical surface of the shading sheet and improve the yield of the shading sheet. Summary of the invention

[0005] In view of the deficiencies in the prior art, the object of the present invention is to provide a matting liquid for a lens shading sheet, a matting lens shading sheet, and a preparation method and application thereof. The matting liquid has an excellent matting effect on the lens shading sheet, and the matting lens shading sheet obtained after the matting treatment has an appropriate alkali reduction and a high yield, and has good application value in the field of optics.

[0006] In order to achieve the purpose of the invention, the present invention adopts the following technical solutions:

[0007] In a first aspect, the present invention provides a matting liquid for a lens shading sheet, wherein the matting liquid comprises the following components in parts by weight:

[0008] Alkali solution 0.05-30 parts by weight;

[0009] 1-10 parts by weight of matting agent;

[0010] Water: 100 parts by weight.

[0011] The matting liquid for a lens shading sheet provided by the present invention comprises an alkali solution, a matting agent and water. By reasonably matching the above three components within a specific dosage range, the obtained matting liquid can effectively matte the lens shading sheet at a relatively low temperature (≤70°C); at the same time, the alkali reduction (referring to the percentage of mass reduction of the lens shading sheet before and after being treated with the matting liquid) of the shading sheet after being matted by the matting liquid for the lens shading sheet provided by the present invention is appropriate, and the vertical position matting of the shading sheet is obvious, and the yield is relatively high; in addition, the matting liquid for a lens shading sheet provided by the present invention also has the characteristics of simple matting process, weak corrosiveness of the matting liquid, environmental protection and non-toxicity.

[0012] In the present invention, the amount of the alkali solution can be 1 part by weight, 5 parts by weight, 10 parts by weight, 15 parts by weight, 20 parts by weight, 25 parts by weight, 30 parts by weight, 35 parts by weight, 40 parts by weight, 45 parts by weight, 50 parts by weight, 55 parts by weight or 60 parts by weight, etc.

[0013] The matting agent can be used in an amount of 1 part by weight, 2 parts by weight, 3 parts by weight, 4 parts by weight, 5 parts by weight, 6 parts by weight, 7 parts by weight, 8 parts by weight, 9 parts by weight or 10 parts by weight, etc.

[0014] Preferably, the water comprises deionized water.

[0015] Preferably, the alkali solution includes any one of a sodium hydroxide aqueous solution, a potassium hydroxide aqueous solution, a calcium hydroxide aqueous solution or ammonia water, or a combination of at least two thereof.

[0016] Preferably, the content of the alkaline substance in the alkali solution is 5wt%~50wt%, for example, 5wt%, 10wt%, 15wt%, 20wt%, 25wt%, 30wt%, 35wt%, 40wt%, 45wt% or 50wt%.

[0017] In the present invention, there is no special restriction on the source of the alkali solution. The product with the required content can be directly purchased, or the alkali solution with the required content can be prepared by mixing the alkaline substance and water.

[0018] Preferably, the matting agent includes octadecyl dimethyl hydroxyethyl quaternary ammonium nitrate, octadecyl dimethyl hydroxyethyl quaternary ammonium nitrate, dodecyl dimethyl benzyl ammonium chloride, dodecyl dimethyl benzyl ammonium chloride, methyl trioctyl ammonium chloride (PTC-004), hexadecyl trimethyl ammonium bromide, polydiene dimethyl ammonium chloride, octadecylamine polyoxyethylene ether diquaternary ammonium salt, ethylene bis [(hexadecyl dimethyl) ammonium chloride], polyolefin quaternary ammonium salt, polyquaternary ammonium salt, alkali reduction accelerator Q-12, dodecyl polyoxyethylene ammonium bromide, hexadecyl polyoxyethylene ammonium chloride, hexadecyl polyoxyethylene / polyoxypropylene block ammonium chloride, tetradecyl alcohol polyoxyethylene ether dimethyl hexadecyl ammonium bromide, hexadecyl alcohol polyoxyethylene ether dimethyl octyl ammonium chloride, alkali reduction accelerator WIN-115, alkali reduction accelerator TYH, hyperbranched Jimiqi quaternary ammonium salt 31766 or asymmetric Jimiqi quaternary ammonium salt 31630, any one or a combination of at least two.

[0019] Preferably, the lens shading sheet is made of polyethylene terephthalate (PET).

[0020] In a second aspect, the present invention provides a method for preparing a matting liquid for a lens shading sheet, the preparation method comprising: mixing an alkali solution, a matting agent and water to obtain the matting liquid for a lens shading sheet as described in the first aspect.

[0021] Preferably, the mixing temperature is 0°C to 60°C, such as 0°C, 10°C, 20°C, 30°C, 40°C, 50°C or 60°C, and more preferably 20°C to 60°C.

[0022] Preferably, the mixing time is 0.5 min to 120 min, for example, 0.5 min, 1 min, 10 min, 20 min, 40 min, 60 min, 80 min, 100 min or 120 min, and more preferably 5 min to 60 min.

[0023] Preferably, the mixing is performed under stirring conditions.

[0024] Preferably, the stirring speed is 50 rpm to 25000 rpm, for example, 50 rpm, 100 rpm, 500 rpm, 1000 rpm, 5000 rpm, 7000 rpm, 9000 rpm, 11000 rpm, 15000 rpm, 20000 rpm, 23000 rpm or 25000 rpm.

[0025] Preferably, the mixing pressure is 0 MPaG to 2 MPaG, for example, 0 MPaG, 0.2 MPaG, 0.4 MPaG, 0.6 MPaG, 0.8 MPaG, 1 MPaG, 1.2 MPaG, 1.4 MPaG, 1.6 MPaG, 1.8 MPaG or 2 MPaG.

[0026] In a third aspect, the present invention provides a matte lens shading sheet, wherein the matte lens shading sheet is obtained by subjecting the lens shading sheet to matte treatment using the matte liquid as described in the first aspect.

[0027] In a fourth aspect, the present invention provides a method for preparing a matte lens shading sheet, the preparation method comprising: immersing the lens shading sheet in the matte liquid as described in the first aspect for matte treatment, and taking it out to obtain the matte lens shading sheet.

[0028] Preferably, the temperature of the matting treatment is 5°C to 70°C, for example, 5°C, 10°C, 20°C, 30°C, 40°C, 50°C, 60°C or 70°C, and more preferably 20°C to 60°C.

[0029] Preferably, the extinction treatment time is 1 min to 20 min, for example, 1 min, 2 min, 4 min, 6 min, 8 min, 10 min, 12 min, 14 min, 16 min, 18 min or 20 min, and more preferably 10 min to 80 min.

[0030] Preferably, the taking out further includes the steps of cleaning and drying.

[0031] Preferably, the cleaning is ultrasonic cleaning.

[0032] Preferably, the temperature of the ultrasonic cleaning is 20°C to 60°C, for example, 20°C, 25°C, 30°C, 35°C, 40°C, 45°C, 50°C, 55°C or 60°C.

[0033] Preferably, the ultrasonic cleaning time is 1 min to 100 min, for example, 1 min, 5 min, 10 min, 20 min, 40 min, 60 min, 80 min or 100 min.

[0034] Preferably, the drying temperature is 30°C to 70°C, for example, 30°C, 35°C, 45°C, 50°C, 55°C, 60°C, 65°C or 70°C.

[0035] In a third aspect, the present invention provides a lens kit, wherein the lens kit comprises the matte lens shading sheet as described in the third aspect.

[0036] The numerical range described in the present invention not only includes the point values ​​listed above, but also includes any point values ​​between the above numerical ranges that are not listed. Due to space limitations and for the sake of simplicity, the present invention no longer exhaustively lists the specific point values ​​included in the range.

[0037] Compared with the prior art, the present invention has the following beneficial effects:

[0038] (1) The matting liquid for lens shading sheet provided by the present invention comprises alkali solution, matting agent and water. By reasonably matching the above components, the obtained matting liquid can matt the shading sheet at a relatively low temperature (≤70°C), and has a very obvious vertical matting effect on the lens shading sheet. The alkali reduction of the matting shading sheet after matting is appropriate (about 0.15%~0.32%), and the yield is relatively high (>90%).

[0039] (2) The matting liquid for the lens shading sheet provided by the present invention also has the characteristics of simple matting process, weak corrosiveness, environmental protection and non-toxicity. DETAILED DESCRIPTION

[0040] The technical solution of the present invention is further described below by specific implementation methods. It should be understood by those skilled in the art that the embodiments are only to help understand the present invention and should not be regarded as specific limitations of the present invention.

[0041] Unless otherwise specified, the raw materials involved below are conventional materials in the art and can be purchased commercially.

[0042] Example 1 to Example 15 and Comparative Example 1 to Comparative Example 6

[0043] Example 1 to Example 15 and Comparative Example 1 to Comparative Example 6 respectively provide a matting liquid for a lens shading sheet, and the components included are shown in Table 1. In Table 1, the dosage units of each component are "parts by weight";

[0044] Table 1

[0045]

[0046] The preparation method of the matting liquid provided in Examples 1 to 15 and Comparative Examples 1 to 6 includes: mixing an alkali solution, a matting agent and water at a rotation speed of 10,000 rpm, a temperature of 50° C. and a pressure of 1 MPaG for 30 minutes to obtain the matting liquid.

[0047] Application Example 1

[0048] Application Example 1 provides a matte lens shading sheet, and its preparation method includes: immersing a lens shading sheet made of polyethylene terephthalate in the matte liquid for lens shading sheet provided in Example 1, performing a matte treatment at a temperature of 60°C for 60 minutes, taking it out and ultrasonically cleaning it in deionized water at 60°C for 30 minutes, and then drying it at 60°C for 5 hours to obtain the matte lens shading sheet.

[0049] Application Example 2~Application Example 15

[0050] Application Examples 2 to 15 respectively provide a matte lens shading sheet, which differs from Application Example 1 in that the matte liquid for the lens shading sheet provided in Examples 2 to 15 is used to replace the matte liquid for the lens shading sheet provided in Example 1, and the other steps and parameters are the same as those in Application Example 1.

[0051] Comparative Application Example 1~Comparative Application Example 6

[0052] Comparative Application Examples 1 to 6 respectively provide a matte lens shading sheet, which differs from Application Example 1 in that the matte liquid for the lens shading sheet provided by Comparative Application Examples 1 to 6 is used to replace the matte liquid for the lens shading sheet provided by Example 1, and the other steps and parameters are the same as those in Application Example 1.

[0053] Performance Test:

[0054] (1) Alkali reduction percentage (MH): calculated according to the following formula:

[0055]

[0056] Among them, mh is the percentage of alkali reduction, the unit is %;

[0057] m0 is the mass of the lens shading sheet before the extinction treatment, in g;

[0058] m1 is the mass of the lens shading plate after the matte treatment, in g.

[0059] (2) Yield (%): Observe the lens shading sheet after matte treatment under a microscope to see if there is obvious corrosion, breakage or scratches. If there is no obvious corrosion, breakage or scratches, it is judged as a qualified product. If there is any obvious corrosion, breakage or scratches, it is judged as unqualified. The yield is the number of qualified shading sheets / the total number of experimental shading sheets × 100%.

[0060] (3) Matting effect: Install the matte-treated lens shading sheet and conduct observation test.

[0061] (4) Appearance: Visually inspect the lens shading plate after matting to see if there is any deformation or corrosion.

[0062] According to the above test method, the matte lens shading sheets obtained from Examples 1 to 15 and Comparative Application Examples 1 to 6 were tested, and the test results are shown in Table 2:

[0063] Table 2

[0064]

[0065] From the data in Table 2, we can see that:

[0066] (1) The matting liquids provided in Examples 1 to 15 all have excellent matting effects on lens shading sheets. In particular, the alkali reduction of the matting lens shading sheets obtained after being treated with the matting liquids provided in Examples 1 to 14 is only 0.15 to 0.32%, and the yield is greater than 90%. The matting effect is excellent and will not cause adverse effects on the appearance of the shading sheets.

[0067] (2) The matting liquid provided in Comparative Examples 1 and 2 has a general effect on matting the shading sheet in the absence of a matting agent. In addition, when the concentration of the alkali solution is too high and the matting agent is absent, it will cause serious corrosion to the shading sheet.

[0068] (3) In the absence of alkali solution, the matting liquid provided in Comparative Example 3 has an alkali reduction change of 0.02% on the shading sheet, with no obvious matting effect.

[0069] (4) The amount of matting agent added in the matting liquid provided in Comparative Example 4 is relatively low, and the alkali reduction change of the shading sheet is 0.62%, the yield is reduced to less than 70%, and the matting effect is average.

[0070] (5) The amount of matting agent added in the matting liquid provided in Comparative Example 5 is relatively high, and the alkali reduction change of the shading sheet is 0.59%, the yield is reduced to less than 60%, and the matting effect is average.

[0071] (6) The amount of alkali solution added to the matting liquid provided in Comparative Example 6 is relatively high, resulting in severe corrosion and deformation of the shading sheet.

[0072] The applicant declares that the above is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Those skilled in the art should understand that any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention shall fall within the protection scope and disclosure scope of the present invention.

Claims

1. A matting liquid for a lens shading sheet, characterized in that: The matting liquid comprises the following components in parts by weight: 1-60 parts by weight of alkali solution; 1-10 parts by weight of matting agent; Water: 100 parts by weight.

2. The matting liquid for lens shading sheet according to claim 1, characterized in that: The alkali solution includes any one of a sodium hydroxide aqueous solution, a potassium hydroxide aqueous solution, a calcium hydroxide aqueous solution or ammonia water, or a combination of at least two of them.

3. The matting liquid for lens shading sheet according to claim 1, characterized in that: The content of alkaline substances in the alkali solution is 5wt%-50wt%.

4. The matting liquid for lens shading sheet according to claim 1, characterized in that: The matting agent includes octadecyl dimethyl hydroxyethyl quaternary ammonium nitrate, octadecyl dimethyl hydroxyethyl quaternary ammonium nitrate, dodecyl dimethyl benzyl ammonium chloride, dodecyl dimethyl benzyl ammonium chloride, methyl trioctyl ammonium chloride, hexadecyl trimethyl ammonium bromide, polydiolefin dimethyl ammonium chloride, octadecylamine polyoxyethylene ether diquaternary ammonium salt, ethylene bis [(hexadecyl dimethyl) ammonium chloride], polyolefin quaternary ammonium salt, polymeric quaternary ammonium salt, alkali reduction accelerator Q-12, dodecyl polyoxyethylene ammonium bromide, hexadecyl polyoxyethylene ammonium chloride, hexadecyl polyoxyethylene / polyoxypropylene block ammonium chloride, tetradecyl alcohol polyoxyethylene ether dimethyl hexadecyl ammonium bromide, hexadecyl alcohol polyoxyethylene ether dimethyl octyl ammonium chloride, alkali reduction accelerator WIN-115, alkali reduction accelerator TYH, hyperbranched Jimiqi quaternary ammonium salt 31766 or asymmetric Jimiqi quaternary ammonium salt 31630, any one or a combination of at least two.

5. The matting liquid for lens shading sheet according to claim 1, characterized in that: The material of the lens shading sheet includes polyethylene terephthalate.

6. A method for preparing a matting liquid for a lens shading sheet, characterized in that: The preparation method comprises: mixing an alkali solution, a matting agent and water to obtain the matting liquid for a lens shading sheet as claimed in any one of claims 1 to 5.

7. A matte lens shading sheet, characterized in that: The matte lens shading sheet is obtained by subjecting the lens shading sheet to matte treatment using the matte liquid as described in any one of claims 1 to 5.

8. A method for preparing a matte lens shading sheet, characterized in that: The preparation method comprises: immersing a lens shading sheet in the matting liquid as claimed in any one of claims 1 to 5 for matting treatment, and taking it out to obtain the matting lens shading sheet.

9. The preparation method according to claim 8, characterized in that: The temperature of the extinction treatment is 5°C to 70°C, and the time is 1 min to 20 min.

10. A lens set, characterized in that: The lens kit includes the matte lens shading sheet as described in claim 7.

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