1. Yarn appearance quality (a combination of visual inspection and hand feel)
1.1 The yarn must go through air splicing and electronic yarn clearer, and requires fixed weight or fixed length.
1.2 There should be no oil stains, soot yarn, color difference, or wrong branches in the yarn. Depends on customer standards, the standard range is as follows:
① Overlap: Both ends of the package are higher than the plane of the original yarn; above 18 (under 32 counts) 0.15 cm, width 0.3 cm; below 18 (more than 32 counts) 0.25 cm, width 0.4 cm; over 5 cm long no Allowed, one place below 5cm is allowed. Second-floor platform: It is not allowed to protrude more than 0.3 cm at one end.
② Wrong branches: No matter how many, they are not allowed.
③Oil stains (including color stains/mildew stains): Not allowed regardless of depth or size.
④Two-story platform: Single-end protrusion of more than 0.3 cm is not allowed.
⑤Mesh yarn: mesh shape is not allowed, single jump yarn is allowed to be 2 cm or less at the big end 3 Roots larger than 2 cm are not allowed, and 2-4 cm roots are allowed at the small head.
⑥Severe embossing of the bobbin is not allowed.
⑦Chrysanthemum core: The longitudinal direction of the tube is not allowed to exceed 1.5 cm.
⑧Trench: The depth is not allowed to exceed 0.25 cm.
⑨Loose yarn belt yarn braid yarn gourd yarn color difference worn yarn bobbin deformation and edge removal bobbin surface and If there are any flying flowers or yarn residue in the package, it is considered to be unqualified yarn.
⑩If you need to give birthThe raw yarn of the veil should not be less than 13 cm, and should be tightly wound around the bottom of the bobbin so that the yarn is attached to the surface.
1.3 There should be no thick spots or long detailed yarn defects.
1.4 There should be no broken ends or random ends caused by wear and tear inside and outside the yarn.
1.5 Single yarns and strands cannot have strongly twisted or weakly twisted parts (compared to normal yarns).
1.6 There cannot be double-ply yarn in a single yarn, and there cannot be three-ply yarn or multi-ply yarn in a strand.
1.7 The quality of the fabric surface in the trial fails to meet the requirements or the trial breakage exceeds the standard (the standard is 5 million If the number of broken ends is 8-10 or more), it will be judged as unqualified.
1.8 Yarn must provide small samples 15 days in advance (generally 4 small samples are about 5cm thick) for raw yarn Index identification and trial weaving to finally determine whether the raw yarn’s various indicators are qualified
1.9 If the specifications of the large sample do not match those of the small sample, please contact the manufacturer in time.
1.10 Use the same paper tube for the same variety; the same paper tube cannot be used for different varieties, and different manufacturers require different paper Tube color, to avoid mixed branches or wrong branches caused by different varieties of the same paper tube color.
2. Appearance forming requirements of package yarn
There are no flying flowers, waste yarn and other debris in the package yarn. There should be no obvious unevenness on the surface of the package, and the package tube should not be obviously damaged or deformed. In order to prevent warping breakage, it is required that the large diameter of the yarn should not be If it exceeds 21cm, air-end spinning should be 22cm, and prevent the yarn from being too loose or too hard to cause yarn breakage.
3. Packaging requirements
Normal packaging requirementsPlease provide the weight, batch, variety, date and moisture regain. Write down the yarn count, ingredients, and place of origin.
Extended reading: https://www. alltextile.cn/product/product-35-939.html
Extended reading: https://www.alltextile.cn/product/product-68-930.html
Extended reading: https://www.alltextile.cn/product/product-60-599.html
Extended reading:https://www.alltextile.cn/product/product-59-905.html
Extended reading: https://www.china-fire-retardant.com/post/9378.html
Extended reading: https://www.alltextile.cn/product/product-51-277.html
