CN111732883A

CN111732883A - Long-acting antifogging coating and production process and application thereof

Info

Publication number: CN111732883A
Application number: CN202010637465.3A
Authority: CN
Inventors: 吴天恕; 吴彦廷; 简志仰; 温祖来
Original assignee: FORESIGHT OPTICAL (XIAMEN) CO LTD
Current assignee: FORESIGHT OPTICAL (XIAMEN) CO LTD
Priority date: 2020-07-04
Filing date: 2020-07-04
Publication date: 2020-10-02

Abstract

The invention relates to a long-acting antifogging coating, a production process and application thereof, wherein the coating comprises the following components in percentage by weight: 48-52% of VPP liquid medicine and 48-52% of propylene glycol methyl ether. The invention is applied to the lens, can effectively prevent the fog of the goggles, ensures the smooth operation of medical personnel, avoids the pollution in the operation and lightens the psychological pressure of the medical personnel in the work.

Description

Long-acting antifogging coating and production process and application thereof

Technical Field

The invention relates to the technical field of glasses, in particular to a long-acting antifogging coating, a production process and application thereof, and the long-acting antifogging coating comprises goggles, masks, lens products and the like.

Background

The goggles are an eye protection device for closing or protecting the periphery of eyes, and are mainly used for preventing particles, water, chemical substances, blood, body fluid and other infectious substances from invading the eyes.

However, the goggles sold on the market at present can fog up after being worn for a period of time, which causes unclear vision, seriously affects the sight of medical staff, increases the operation difficulty and increases the pollution risk. The fogging problem of the goggles not only affects the accuracy of the operation of medical personnel, but also increases the psychological pressure.

When a significant temperature difference occurs between the material and the environment, water mist condenses on the surface. This is because the saturated vapor pressure of water decreases below the partial pressure of water vapor in the air due to the decrease in air temperature, causing the water vapor to condense into water droplets. The reason why the goggles are fogged is that the temperature of a human body is higher than the indoor temperature, and the temperature difference between the inner layer and the outer layer of the goggles is large, so that the goggles are easy to generate fog.

The treatment of antifogging lenses in the market is mainly as follows:

1. the antifogging agent of the swimming goggles is evenly coated on the surface layer of the inner layer of the goggles lens, and the goggles lens is worn after standing and airing.

The disadvantages are that: most of water stains on the surface of the lens are in a point halo shape, so that the definition is reduced, and the visual field and the visibility are influenced; moreover, the antifogging agent is expensive and not easily available.

2. And (3) uniformly coating a proper amount of the detergent on the inner layer of the lens by using a cotton swab or gauze, standing and airing for later use.

The disadvantages are that: the detergent needs to be used after being dried and wiped, the preparation time is long, the anti-fog effect cannot be immediately obtained, and the emergency use is not facilitated.

3. This phenomenon is improved by using functionalized graphene thin film materials and electronic equipment.

The disadvantages are that: high cost and influence on vision.

Disclosure of Invention

In order to solve the technical problems, the invention provides a long-acting antifogging coating and a production process thereof, and application of the coating as an antifogging coating on a long-acting antifogging lens, and relates to application of the long-acting antifogging lens on goggles, masks, lens products and the like. Compared with the existing product, the invention has low cost and can effectively prevent fog with the length of more than 24H.

The specific scheme is as follows:

one purpose of the invention is to provide a long-acting antifogging coating, which comprises the following components in percentage by weight: 48-52% of VPP liquid medicine and 48-52% of propylene glycol methyl ether.

Further, the coating comprises the following components in percentage by weight: 50% of VPP liquid medicine and 50% of propylene glycol methyl ether.

Further, the VPP liquid medicine is produced by FSICT company.

Further, the VPP liquid medicine comprises the following components in percentage by weight: 30-60% of 1-methoxy-2-propanol, 1-5% of methoxy propyl acetate, 10-30% of diacetone alcohol, 20-30% of polyurethane, 1-0% of surfactant and 0-1% of xylene.

The invention also aims to provide a production process of the long-acting antifogging coating, which comprises the following steps:

(1) mixing VPP liquid medicine and propylene glycol methyl ether according to weight percentage;

(2) pneumatically mixing in a dust-free workshop at 20-25 deg.C for 2 hr to make the medicinal liquid fully react and fully combine the chemical molecular structure of the medicinal liquid;

(3) and (3) pouring the liquid medicine fully reacted in the step (2) into an enhancement tank, raising the temperature of the liquid medicine to 28-32 ℃, and reacting the liquid medicine again to achieve better antifogging performance and processing fluidity so as to obtain a finished product.

Further, the weight percentage of the VPP liquid medicine and the propylene glycol methyl ether in the step (1) is 1: 1.

Further, the closed container in the step (2) is a stainless steel closed container.

The invention also aims to provide a long-acting anti-fog lens which is provided with an anti-fog coating, and the material of the anti-fog coating is the long-acting anti-fog coating.

The invention also aims to provide an application of the long-acting anti-fog lens on goggles and masks.

Wherein:

the VPP liquid medicine (Visgard Premium Plus) adopted by the invention is produced by FSI coating technologies, Inc. (FSICT). The VPP lotion has the performance of an antifogging coating and excellent abrasion, chemical and ultraviolet resistance, has excellent adhesion in extreme temperature and high humidity environments, can prevent fog formation after repeated cleaning, is transparent and does not yellow.

The propylene glycol methyl ether adopted by the invention has the effect of promoting the fusion and decomposition of the VPP liquid medicine, so that the anti-fog performance of the VPP liquid medicine is better, and the processing fluidity is better. The invention reasonably adjusts the proportion of the VPP liquid medicine and the propylene glycol methyl ether, so that the concentration of the VPP liquid medicine and the propylene glycol methyl ether is balanced, the cost can be reduced, and the optimal antifogging effect can be realized. The optimal ratio of the VPP liquid medicine to the propylene glycol methyl ether is 1: 1.

Has the advantages that:

the product of the invention has good antifogging effect, does not fog when being worn for 24H, and has reasonable cost and good vision.

The invention can effectively prevent the fogging of the goggles, ensure the smooth operation of medical workers, avoid the pollution in the operation and reduce the psychological pressure of the medical workers in the work.

Detailed Description

The following detailed description of embodiments of the invention is intended to be illustrative of the invention and is not to be construed as limiting the invention. The examples do not specify particular techniques or conditions, and are performed according to the techniques or conditions described in the literature in the art or according to the product specifications. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products commercially available.

Example 1: long-acting antifogging coating

The embodiment 1 provides a long-acting antifogging coating, and a production process of the long-acting antifogging coating comprises the following steps:

(1) mixing VPP liquid medicine and propylene glycol methyl ether according to the weight percentage: the VPP liquid medicine content is 50%, and the propylene glycol methyl ether content is 50%;

(2) pneumatically mixing in a stainless steel closed container for 2 hours at 20-25 ℃ in a dust-free workshop to fully perform chemical reaction on the liquid medicine and fully combine the chemical molecular structures of the liquid medicine;

(3) pouring the liquid medicine fully reacted in the step (2) into an enhancement tank, raising the temperature of the liquid medicine to 28-32 ℃ so that the liquid medicine reacts again to achieve better antifogging performance and processing fluidity, and obtaining the finished product of the example 1.

Wherein: the VPP liquid medicine is produced by FSICT company, and comprises the following components in percentage by weight: 30-60% of 1-methoxy-2-propanol, 1-5% of methoxy propyl acetate, 10-30% of diacetone alcohol, 20-30% of polyurethane, 1-0% of surfactant and 0-1% of xylene.

Example 2: long-acting antifogging coating

The production process of this example 2 is substantially the same as that of example 1, except that the VPP chemical solution content of this example 2 is 48% and the propylene glycol methyl ether content is 52%.

Example 3: long-acting antifogging coating

The production process of this example 3 is substantially the same as that of example 1, except that the VPP chemical solution content of this example 2 is 52% and the propylene glycol methyl ether content is 48%.

Example 4: long-acting antifogging lens

A long-acting anti-fog lens, the lens being provided with an anti-fog coating, and the material of the anti-fog coating being the long-acting anti-fog coating of embodiment 1.

Example 5: long-acting antifogging lens

A long-acting anti-fog lens, the lens being provided with an anti-fog coating, and the material of the anti-fog coating being the long-acting anti-fog coating of embodiment 2.

Example 6: long-acting antifogging lens

A long-acting anti-fog lens, the lens being provided with an anti-fog coating, and the material of the anti-fog coating being the long-acting anti-fog coating of embodiment 3.

Example 7: long-acting antifogging goggles

The use of the long-acting anti-fog lens of example 4 on goggles produces a finished long-acting anti-fog goggles.

Of course, the invention is equally applicable to face masks or other lens-like products.

Example 8: long-acting antifogging goggles

The use of the long-acting anti-fog lens of example 5 on goggles produces a finished long-acting anti-fog goggles.

Example 9: long-acting antifogging goggles

The use of the long-acting anti-fog lens of example 6 on goggles produces a finished long-acting anti-fog goggles.

And (3) experimental test:

the goggles of examples 7-9 were tested for anti-fogging effect and the results are shown in table 1.

TABLE 1 antifogging effect test results of the present invention

	Example 7	Example 8	Example 9
				Fog on 24H	Does not fog	Does not fog	Does not fog
24H View Effect on wear	Clear and clear	Clear and clear	Clear and clear

As can be seen from Table 1, the product of the invention has good antifogging effect, does not fog when worn for 24H, and has reasonable cost and good vision.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The long-acting antifogging coating is characterized by comprising the following components in percentage by weight: 48-52% of VPP liquid medicine and 48-52% of propylene glycol methyl ether.

2. The long-acting antifog coating of claim 1, characterized in that the coating comprises the following components in weight percent: 50% of VPP liquid medicine and 50% of propylene glycol methyl ether.

3. The long-acting anti-fog coating of claim 1, wherein the VPP solution is produced by FSICT corporation.

4. The long-acting antifog coating of claim 3, wherein the VPP lotion comprises the following components in weight percent: 30-60% of 1-methoxy-2-propanol, 1-5% of methoxy propyl acetate, 10-30% of diacetone alcohol, 20-30% of polyurethane, 1-0% of surfactant and 0-1% of xylene.

5. A process for producing a long-acting antifogging coating according to any of claims 1 to 4, characterized in that it comprises the following steps:

6. The production process of claim 5, wherein the VPP liquid medicine and the propylene glycol methyl ether in the step (1) are 1:1 in weight percentage.

7. The process according to claim 5, wherein the closed vessel of step (2) is a stainless steel closed vessel.

8. A long-acting antifogging lens, characterized in that, the lens is provided with an antifogging coating, and the material of the antifogging coating is the long-acting antifogging coating of any one of claims 1 to 4.

9. Use of the long-acting anti-fog lens of claim 8 in goggles, face masks.