Double roller blind, also known as soft gauze curtain, rainbow curtain, Doris, dimming roller shutter, double-layer roller shade. A kind of textile woven by a small piece of fabric with equal width and gauze at intervals from each other, which is fixed by one end, and the other end is rolled with the shaft to reach the goal of adjusting the light. When gauze and gauze overlap, the time line is relatively soft, to some extent, the direct light is reduced. When the cord fabric and the cord fabric are recombined, the light is completely covered, thus finally achieving the purpose of blocking the light. When the curtain needs to be completely opened, the curtain can be completely rolled up. Double roller blind combines the warmth of fabric, the simplicity of roller shutter, and the dimming function of Venetian blind. The curtain is easy to operate, diversified shading forms, and does not hinder the vision at all. It is an ideal choice for office and home tracery.

According to the different shading effect of the fabric, it can be divided into half shade double roller blind, imitation linen double roller blind and full shading double roller blind. Shading effect from low to high. Half shade double roller blind, one of the most common double roller blind styles, woven with polyester polyester fabric, has good light transmission and ventilation effect, and can be widely used in offices, cafes, homes and other places. Imitation linen double roller blind, using imitation linen fabric, the shading effect is better than half shade double roller blind, which can reach about 75%. The fabric is simple and elegant, which is a good choice for users who like natural curtains. There are both natural and beautiful effects of bamboo and hemp curtains, and colleagues can adjust light at will, which is a new choice for home curtains. Full shading double roller blind, using fully blackout fabric, can achieve 100% shading effect.