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The majority of sewing machine needles are made of various grades of hardened steel coated with either nickel or chromium, though certain specialty needles are coated with titanium nitride on top of chromium. Titanium nitride is a reflective golden-colored ceramic material which reduces abrasion allowing the needle to stay sharper longer and ...
A buttonholer attachment can create buttonholes from any sewing machine capable of making a lock stitch. (That is not to say, however, that some industrial buttonhole machines cannot employ a chain stitch, especially to create the purl when making keyhole buttonholes). The buttonholer's adaptor attaches to the machine's presser bar, replacing ...
A keyhole buttonhole is a special case of a thread-finished buttonhole that has a round hole at the end of the buttonhole slit, reinforced with a fan-shaped array of stitches. Because a button-closed gap in a garment is normally under some stress, the button will tend to move towards the end of the buttonhole closest to the gap in the garment ...
types of hand sewing stitches. This is a list of stitches used in hand and machine sewing. The most common standard for stitches in the apparel industry is ASTM International ASTM D6193-16(2020) [1] The standard also covers various types of seams. Under this classification of stitches there are basic groups as follows:
Industrial lockstitch machines with two needles, each forming an independent lockstitch with its own bobbin, are also very common. There are different types of lockstitch industrial machines. The most commonly used are the drop feed for light and medium duty, and walking foot for medium and heavy duty like the Class 7 with an impressive 3/4 ...
Buttonhole stitch scallops, usually raised or padded by rows of straight or chain stitches, were a popular edging in the 19th century. Buttonhole stitches are also used in cutwork, including Broderie Anglaise, and form the basis for many forms of needlelace. This stitch is well represented on 16th- and 17th-century whitework items.