Interlining is a popular choice for enhancing window treatments like curtains or blinds to give an extra layer of thickness. Many fabrics can appear quite lifeless and thin on their own, but adding the extra layer can have a dramatic impact for the most sumptuous look. Interlining is not only used to improve the overall look, but also to make the curtains much more insulating.

The main types of interfacing consist of saril, which is made of polyester, and domett and bump, which is made of cotton.

Saril

Saril is one of the most profitable interlining options, but it lacks draping qualities, so it is not a practical option in all situations. It is a dot-bonded fabric with fibers bonded together by repeating rows of small dots. Actual weight is fairly consistent with cotton substitutes. A practical benefit of saril over the dome and bulge is the ability to resist shrinkage in a humid environment. This makes it useful for any item that is used in the bathroom or kitchen.

Wool

Domett is a type of cotton twill fabric that is heavily brushed and slightly thinner than the bump. It is available in various weights to make it more versatile to use. This interlining option is one of the easiest to use. A popular area to use domett is curtains, blinds, or other areas with pleated elements, such as tails and garlands. The thickness of the dome is in the region of 2mm and the weight can range from 160g / m2 to 300g / m2.

Boss

Bump is a thick, loose-woven fabric that is perfect for various types of interlacing. It is made with 20% synthetic fibers and 80% cotton. This type of fabric is likely to shrink in humid atmosphere, so it is more practical to use preshrunk. This is a high quality option and is sure to give the best finish for a curtain set. In addition, it is practical to combine it with fine fabrics such as silk. However, this is one of the more difficult interline options to work with. The thickness is approximately 0.5mm and the weight is in the region of 400g / m2.

While interfacing does a lot to enhance curtains and blinds, it can have a significant impact on the price. This relates to the longest time to manufacture the item and the longest fabric used. But, in most cases, it leads to the finished article with a far superior finish and insulating qualities.