- When purchasing raw yarn, the yarn is finer than specified. For example, the actual measured count of a supposed 40-count yarn is 41-count.
- Insufficient moisture regain. After the printing and dyeing process of fabrics, a large amount of moisture is lost during drying, while the fabric specification refers to the gram weight under the standard moisture regain. Therefore, when the weather is dry and the dried cloth has not fully regained moisture, the gram weight will also be insufficient. This deviation is particularly significant for natural fibers such as cotton, linen, silk, and wool.
- Excessive wear of raw yarn during the weaving process leads to the shedding of too many fiber fuzz, which makes the yarn thinner and thus results in lower gram weight.
- Re-dyeing during the dyeing process causes large yarn loss and makes the yarn thinner.
- Excessively high firepower during singeing makes the fabric surface overly dry, and the yarn gets damaged during desizing, leading to yarn thinning.
- Damage to the yarn caused by caustic soda during mercerizing.
- Damage to the fabric surface caused by napping and sueding finishing.
- Finally, the density fails to meet the process requirements. Production is not carried out according to specifications, with insufficient weft density and warp density.
Post time: Dec-09-2025