The following data comes from production, for reference only! Promotional Knitted Set,Cheap Knitted Set,Acrylic Knitted Sets Hat & Cap,Scarf & Glove,Buff/ Multifunction Bandana Co., Ltd. , http://www.cnhatcap.com
Dyed yarn:
4% of chemical fiber, T/C5%, CVC6%, cotton combed 7% Weaving:
Chemical fiber long fiber class 0.3%,
Chemical fiber short fiber category 1.5%,
T/C combing material: 2%
CVC, cotton combed material: 2.5%
Color yarn: 3-6% with:
The loss of the above yarn is larger on this basis;
The poor raw material manufacturers are short of two (very common) on this basis;
The thicker the yarn, the worse the quality of the cotton staple fiber is, and the greater the loss;
The same specification raw materials, I used to be a well-known raw material supplier in Shanghai, the loss is only 1.5%, while a company in Jiangsu has a 4% loss (weaving, one place), and the loss in the subsequent dyeing and finishing is very different. Big.
The smaller the order, the greater the loss. For example, do 15KG fabric, adjust the fabric to 3M about 1KG, and do 1500KG, or use 1KG adjuster fabric.
For yarn-dyed, the more the color, the greater the loss.
When different raw materials are interwoven, the more the different raw materials, the greater the loss. Dyeing and finishing:
Sewer shaping: 3-4%
Chemical fiber long fiber: 4.5-5%
Chemical fiber staple fiber: 4.5-5.5%
T/C: 4.5-5.5%
CVC: dark color 6-6.5%, medium color 6.5-7%, bleaching and light color 7-8%, the higher the proportion of cotton, the greater the loss of cotton: dark 7-7.5%, medium color 7.5-8% , light color 8-9%, bleaching 8-9%
Enzyme treatment: 2.5%
Trimming: (cut width / original width / 100 0.2)%
Resin: If there is no change according to the length of the fabric; if the weight of the fabric will increase according to the weight of the fabric, the loss will be small.
Brushing: 1-2.5%
Sanding: 1-2.5%
After bristles, sanding, and then shaving: 1-3%
CVC velvet: steamed, woven, grey fabric shear loss total of 11.5-13%
CVC velvet dyed to the finished product: 11.5-13%
Flower ash or yarn-dyed CVC velvet water finishing to the finished product: 6-10%
Ordinary fleece dyeing finished product: 11-14%
Superfine fleece dyeing finished product: 15-19%
Flower ash fleece dyed finished product: 10-12%
Double brush double fleece dyeing finished product: 4-6% based on the above
The loss of the fleece requires the weaving of the hair to match the style of the shaker, otherwise the loss will be large.
Fabric dyeing and finishing loss = (raw fabric weight - finished fabric weight) / rough fabric weight * 100%
The main factors of fabric dyeing and finishing loss:
1. Removal of oil, wax, pectin, cottonseed and other components on fabrics, yarns, fibers, etc. in bleaching and dyeing. -
2. The breakage and shedding of the free fibers on the fabric and yarn during dyeing and finishing, including the raising and shearing in the finishing. -
3. The fabric is corroded and dissolved after various treatments such as acid reduction, alkali reduction, enzyme treatment and chemical washing. -
4. Shear loss in the fabric process: to the seam head, to do the cylinder sample, etc. -
5. Loss of fabric quality problems: Can not be repaired, can be repaired to repeat the loss of 2, 3.4. -
6. Resurgence of grey fabric > Resurgence of finished products. -( )
7. Dyes and additives are adsorbed on the fabric. Personal summary:
1. Knitted fabric cotton loss: bleaching 7-10%, light color 7-9%, medium dark color 6-9%
2. Loss of polyester-cotton knitted fabric: bleaching 7-9%, light-colored 6-8%, medium-dark 5-8%
3. Loss of polyester-knitted fabric: 4-6% (if the loss is large, it indicates the possibility of the raw material oil exceeding the standard)
4. Loose fabric damage > compact fabric.
5. The roving fabric is damaged> the fabric of the spun yarn.
Woven fabric weaving loss and dyeing loss calculation method