Upholsterers use many types of upholstery needles designed for specific use. Some needles are most suitable for some works than others. The double pointed straight needle is better for sewing buttons into cushions than the single point type.
The straight needle, which is also called the button needle, is produced in
different sizes with length ranging from 4 inches to 30 inches. They are used
to fasten buttons to cushion and other stuffed parts of the upholstered
furniture and also to stitch through padding to secure it to a foundation. The
straight needles can be single pointed,
Also the points may either be round or triangular (spear points) in shape.
The triangle is best for going through tough fabric and padding.
The double point’s needle is that it can be pushed through the material and be made to come back without having to reverse the needle. This helps to save time when working with it.
Curved needles are used for blind stitching of fabric in places where stapling or tacking are not possible
The curved needle comes with both points. They are usually preferred because it can be pushed through the material and returned without being reversed. Their length, which is the measure of the outer circumference, varies from 2 inches to 10 inches and are also available in light or heavy weight, which are used on thin and thicker fabrics.
Stuffing regulators are used to smooth irregularities on padded materials under a temporary cover. The sharp end of the regulator is used to make a hole in the fabric by gently separating the yarns in the weave. Once the padding has been moved the hole can be closed by gently closing the yarns back. The flattened end of the regulator is used for forcing padding into tight corners.
Stuffing regulators are not used in sewing cover materials because they will leave holes on the cover. Regulators, though they are similar to needles are heavier, ranging from 15cm to 30cm in length.
There are many more upholstery needles used in the trade but these are the main ones.
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