Dropped Stitch: This occurs when a stitch is not properly formed and falls off the needle. The result is a hole in the fabric.
Run or Ladder: A run or ladder is a line of dropped stitches that travels down the length of the fabric. This can be caused by a dropped stitch or by pulling the fabric too tightly.
Tension Problems: Tension problems occur when the tension of the yarn is not consistent throughout the fabric. This can result in uneven stitches or fabric that is too loose or too tight.
Holes: Holes can occur in knit fabrics when the yarn is not properly interlocked. This can be caused by a dropped stitch, tension problems, or by snagging the yarn.
Uneven Stitching: Uneven stitching can occur when the tension of the yarn is not consistent or when the knitter is not properly following the pattern. The result is a fabric with visible irregularities.
Skipped Stitches: Skipped stitches occur when a stitch is accidentally missed during the knitting process. The result is a hole in the fabric.
Pilling: Pilling occurs when small balls of fuzz form on the surface of the fabric. This can be caused by friction or by low-quality yarn.
Uneven Dyeing: Uneven dyeing can occur when the dye does not penetrate the fabric evenly. The result is a fabric with areas that are lighter or darker than others.
Stains or Discolorations: These can be caused by a number of factors, including improper dyeing or exposure to chemicals or sunlight. The result is a fabric with visible stains or discolorations.
Shrinkage: Shrinkage can occur in knit fabrics when the yarn is not properly treated before or after knitting. The result is a fabric that is smaller than intended.