How does resin-coated ordinary blackout curtain fabric block indoor heat?

Resin-coated ordinary blackout curtain fabrics can block indoor heat in the following ways:

Reflect heat: Resin coatings often have heat-reflective properties, meaning they reflect some of the sunlight and heat, preventing them from entering the home. In this way, the indoor temperature will not rise due to direct sunlight, reducing the need for air conditioning.

Absorb heat: Resin-coated curtain fabrics can also absorb some sunlight and heat. Although they absorb some heat, much of it is not transferred to the interior of the room behind the curtain fabric, reducing indoor heat gain.

Insulation: Some resin-coated curtain fabrics may have insulation added to their structure, such as bubble layers or metallic foil. These insulation layers can effectively reduce the conduction of heat, thereby preventing indoor heat from transferring to the outside of the window, or preventing external heat from entering the room.

Resin-coated curtain fabrics can help prevent the loss of indoor heat or the entry of external heat, thereby helping to maintain a stable indoor temperature, reducing the need for indoor air conditioning and reducing energy consumption.