Visible light shielding structure

Abstract

A visible light shielding structure is provided. The visible light shielding structure includes a metal foil layer, two adhesive layers, and two synthesized paper layers. The metal foil layer has a first surface and a second surface opposite to the first surface. The two adhesive layers are disposed on the first surface and the second surface of the metal foil layer, respectively. The two synthesized paper layers are disposed on the two adhesive layers, respectively. Each of the two synthesized paper layers is a polypropylene based resin layer.

Description

technical field [0001] The invention relates to a visible light shielding structure, in particular to a visible light shielding structure which can completely shield visible light and reflect part of the light. Background technique [0002] see Figure 6 As shown, a light-shielding structure 9 is provided in the prior art. The light-shielding structure 9 includes a light-shielding adhesive layer 90 and two resin layers 91 wrapped outside the light-shielding adhesive layer 90 . Through the setting of the light-shielding adhesive layer 90, the light-shielding structure 9 can prevent light from penetrating through, therefore, the light-shielding structure 9 can be applied to prints, sunshade curtains, billboards or food packaging. [0003] In the light-shielding structure 9 , the light-shielding adhesive layer 90 is disposed between the two resin layers 91 , and plays the role of bonding the two resin layers 91 and blocking the passage of light. In order to make the light-shie...

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Problems solved by technology

[0004] However, when the added concentration of carbon black increases, although it can have a better light-shielding effect, it tends to reduce the bonding effect between the light-shielding adhesive layer 90 and the resin layer 91

Therefore, in order to take into account the functions of shading and bonding, the amount of carbon black added cannot be increased without an upper limit, and the shading effect of the shading structure 9 is thus limited.

[0005] After testing, the light-shielding structure 9 in the prior art can only shield 99% of visible light, and still 1% of visible light will pass through, and cannot shield ultraviolet light

In this way, when the shading structure 9 is applied to the sunshade, it cannot effectively block the light outside the house from entering the house, and it is easy to affect the daily life of the occupants in the house.

Moreover, the temperature inside the house is likely to rise significantly due to direct sunlight, and additional energy (such as: air conditioning) is required to cool down the temperature inside the house

Therefore, the light-shielding structure 9 provided in the prior art still needs to be improved

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