Relevant national departments stipulate that wool should have a label, and the label should indicate the trademark, wool content, product number, manufacturer, etc. The product number generally consists of 4 digits, with the first digit indicating the type of wool. 0 is the code of worsted wool; 1 is the code of woolen wool; 2 is the code of worsted knitted wool; 3 is the code of woolen knitted wool; 4 is the code of new varieties. The second digit indicates the raw material used for the yarn. The 3rd and 4th digits indicate that the higher the nominal count of the yarn, the higher the quality.

Each bundle of wool has a label. In addition to the trademark, wool content, and manufacturer, the label also includes a 4-digit product number.

The first digit indicates the type of wool, consisting of 0 to 4. 0 indicates worsted wool; 1 indicates woolen wool; 2 indicates worsted knitted wool; 3 indicates woolen knitted wool; 4 indicates new varieties.

The second digit indicates the raw materials used and consists of 1 to 8. 1 represents domestic wool; 2 represents imported wool; 3 represents imported wool blended with imported viscose fiber; 4 represents trial product; 5 represents domestic wool blended with viscose; 6 represents imported wool blended with imported acrylic fiber; 7 represents domestic wool blended with synthetic fiber. Fiber blend; 8 represents pure acrylic.

The last two digits indicate the yarn count. The higher the number, the finer the yarn and the higher the quality.

For example: "1175" means wool made from woolen domestic wool 7.5-thread yarn. The trademark of wool is a small label attached to the yarn branch, usually with a 3-digit number printed on it. The first digit represents the raw material of wool, and there are 10 kinds from 0 to 9; the last two digits represent the count of single yarn. The larger the two digits, the finer the yarn, and the number of turns in each small skein is The more, the less material is used to weave clothes. If you add a "4" in front of the three-digit number, it means it is a trial product (it also means a new product).

1) All-wool yarn: the first digit of the product number is 1 or 2. The first digit 1 indicates that the yarn is spun from heterogeneous wool. Heterogeneous wool refers to a piece of wool that has different thicknesses from top to bottom, and has thicker and rougher hairs. The graded wool in domestic wool is all heterogeneous wool. Wool grades are different, and the content of coarse cavity hair is also more or less. For example, item numbers 168 and 170 wool are made of domestic third- and fourth-grade wool. There are many coarse-chambered wools poking out on the surface, which makes it rough to the touch and tends to become stiff when woven into clothes. When selecting this type of yarn, choose coarse-chambered wool and It is better to have fewer yarn defects.

The yarns of item numbers 180 and 116 are made of first- and second-grade domestic wool, with less coarse-cavity hairs on the surface. Especially the fine wool spun with first-class wool, almost no coarse-cavity hairs can be seen, and the feel is Soft and elastic, with a smooth appearance, but the color is not bright enough and the price is relatively high.

The best quality wool is all made of homogeneous wool. The count of imported wool and domestic wool is called homogeneous wool. There are certain standards for wool fineness and length of homogeneous wool. The first digit of the product number of this kind of yarn is 2. For example, 268, 272, 275, 219, etc.

2) Blended wool: wool blended with wool-type acrylic fiber and heterogeneous wool. The first digit of the product number is 7. Compared with heterogeneous wool yarn, it improves the strength and service life of the wool and improves the color and reduced pilling. The first digit of the product number is 4 for wool blended with homogeneous wool and heterogeneous wool. The first number 6 represents the blend of homogeneous wool and acrylic fiber.

3) Chemical fiber yarn: the first digit of the product number is 8. It is characterized by bright color, moisturizing, non-fading, chubby appearance and light and soft feel.

4) The first number on the label is 3; it means imported wool and viscose fiber blend.

5) The first number on the sign is 5, which means domestic wool and viscose fiber blend.

6) The first number on the label is 0, indicating a blend between goat hair grades.

7) The first number on the sign is 9, which is a variety of wool that does not fall into the above range.