Fully anti-ultraviolet automobile film and its manufacturing method

Abstract

The invention provides a total ultraviolet-proof automobile film, comprising a PET (Polyethylene Terephthalate) composite film, a PET protective film and a PET coating film arranged between the PET composite film and the PET protective film; the side of the PET coating film in contact with the PET composite film is coated with a uv400 total ultraviolet-proof slurry; the side of the PET coating film in contact with the PET protective film is coated with an adhesive; the uv400 total ultraviolet-proof slurry is composed of 2,2'-dihydroxyl-4-methoxybenzophenone, methylbenzene, butanone, an oil-based nano titanium dioxide dispersant, a thioxanthone photoinitiator, a yellow azo dye and acrylic resin. The invention also provides a manufacturing method of the automobile film; the manufactured automobile film is capable of completely stopping ultraviolet rays and preventing the ultraviolet rays from hurting the human body, and also long in service life, good in clarity, and further capable of achieving certain anti-explosion effect on the automobile glass.

Description

technical field [0001] The invention relates to the field of optical films, in particular to a full anti-ultraviolet automotive film and a manufacturing method thereof. Background technique [0002] Ultraviolet light is a general term for radiation with wavelengths from 10nm to 400nm in the electromagnetic spectrum, which is divided into short-wave, medium-wave and long-wave. Short-wave ultraviolet rays are ultraviolet rays with a wavelength of 280-100nm. Short-wave ultraviolet rays are absorbed by the ozone layer when passing through the stratosphere of the earth's surface and cannot reach the earth's surface; medium-wave ultraviolet rays are ultraviolet rays with a wavelength of 315-280nm. Medium-wave ultraviolet rays have certain physiological effects on human skin. Most of it is absorbed by the epidermis of the skin and can no longer penetrate into the skin. However, due to its high energy level, it can cause strong photodamage to the skin. The dermal blood vessels in th...

AI Technical Summary

Problems solved by technology

Short-wave ultraviolet rays are ultraviolet rays with a wavelength of 280-100nm. Short-wave ultraviolet rays are absorbed by the ozone layer when passing through the stratosphere of the earth's surface and cannot reach the earth's surface; medium-wave ultraviolet rays are ultraviolet rays with a wavelength of 315-280nm. Medium-wave ultraviolet rays have certain physiological effects on human skin. Most of it is absorbed by the epidermis of the skin and can no longer penetrate into the skin. However, due to its high energy level, it can cause strong photodamage to the skin. The dermal blood vessels in the irradiated area expand, and the skin may appear symptoms such as redness, swelling, and blisters. Erythema, inflammation, and skin aging can occur when irradiating the skin. In severe cases, it can cause skin cancer; long-wave ultraviolet rays are ultraviolet rays with a wavelength of 400-315nm. Long-wave ultraviolet rays are far more penetrating to clothing and human skin than medium-wave ultraviolet rays. , and can act on melanin in the epidermis, thereby causing skin melanin pigmentation, darkening the skin, and playing a role in defending against ultraviolet rays and protecting the skin. Therefore, long-wave ultraviolet rays are also called "tanning stage". Causes acute inflammation of the skin, but acts slowly on the skin and can accumulate for a long time, which is one of the causes of skin aging and severe damage

In order to protect the car and reduce the damage of ultraviolet rays to the human body, car film is usually pasted on the glass of the car. The anti-ultraviolet effect of ordinary car film is relatively poor, and the ability to block long waves is very weak; there are also some good anti-ultraviolet on the market. Automotive films can block medium waves to a certain extent, but the blocking rate of long waves is not high, up to about 98%. There are also some automotive films that have better anti-ultraviolet effects. The patent application number 200410070633.7 provides An anti-ultraviolet optical film with good anti-ultraviolet effect. The patent application number 201310242187.1 provides a high heat insulation and anti-ultraviolet solar film. It is tested by an ultraviolet intensity detector and the result of the ultraviolet intensity test is almost zero.

It can be seen from the above description that the car film currently on the market cannot completely block ultraviolet rays, that is to say, it cannot completely avoid the damage of ultraviolet rays to the human body. Therefore, it has become a top priority to manufacture a car film that can completely block ultraviolet rays.

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