Xiangyun yarn is a silky fabric with light texture and smooth texture. It is oily and bright, and it is light and cool. It is the ideal material for the summer of the rich and noble people. It uses a kind of plant-specific yam liquid of Guangdong Province to coat the mulberry silk fabric, and then uses the river mud mud near the Foshan to cover the sun. Because the tannin juice containing tannins interacts with the iron ore specific to the local river pond mud, it turns into a blue-black tannic acid iron, which makes the silk fiber wrapped with a layer of potato chips, so the river pond The mud-covered silk surface is blue-black, and the silk bottom is brown-red. It becomes a more silky and silky fabric that wears more oily and brighter.

Technical requirements for quality of silk yarn (1) Raw and auxiliary materials. 1. 2. The surface is brownish black and the cut surface is red. 3. River Mud: Collected in the river channel of Shunde District, rich in ferrous ions, color gray and black, no foul smell, delicate touch, does not contain impurities that affect the use. (2) Processing technology requirements. 1. From the goods") → over the mud → clean the river mud → four times sealed water (commonly known as "Fu Wu") → spread fog 2. Process points: (1) blank silk preparation. The blank silk is cut into segments of 15m to 20m, and the cotton sleeves are sewn on both ends of each of the blanks. (2) Preparation of dioscorea. After the ground yam is placed in the bamboo raft, it is immersed in a water tank and the resulting yam liquid is filtered. The yam liquid obtained by immersing in the first tank is called “head water”, and the yam liquid obtained by immersing the “head water” shiidding into the second water tank is called “two waters”, and later The yam liquid obtained in turn is called "three over water" and "four over water". (3) Dipping water. Dip the prepared silk into the “head over water” and turn it continuously until it is saturated. (4) Sunburn. After taking out the dipped silk, the silk is naturally drained, and the front side is spread flat on the grass and exposed to the sun. (5) Sprinkle water. Sprinkle the “two waters” on the dried silk, and immediately use the sunflower leaf broom to evenly and dry the “two waters” on the surface of the silk. (6) Sealing water once. The blank silk is placed in a special sealing water tank, and the blank silk is immersed in "three waters" for more than 30 minutes, and is dried, so that the cycle is repeated several times. (7) Cooking silk once. Place the silk in a large copper pot and soak for 4 to 5 minutes with “three-pass water” at a temperature of 45 ° C to 50 ° C. During this period, it should be turned continuously. The silk after soaking should be drained and dried naturally. (8) Double sealing water. The "four-over-water" is used to seal the silk of the boiled silk for the second time, and the loop is repeated several times. (9) Secondary cooking of silk. Use the "four over water" to make the second boiled silk after the second sealing of the water. (10) Three times of sealing water (commonly known as "starting goods"). The third time after the second boiled silk is sealed with the "four over water", the water is only sealed once, and after the silk is dried, it is rolled into a cylindrical shape. (11) Over the mud. The silk is treated with the river mud after the above process. Cross the river mud should be in the shade, follow the steps below: 1 Mix the river mud evenly into a paste; 2 Spread the front side of the blank silk on the clean concrete floor and apply the river mud to form a uniform thin river mud. The layer shall be invisible to the naked eye; 3 After the mud is applied, the blank shall be gently folded in half according to the central axis, and then the silk shall be smoothly lifted to the sand for 30 to 50 minutes. (12) Clean the river mud. The silk after the mud is lifted to the river near the drying ground for washing, and after the river mud is washed out, the front side is spread flat on the grass and dried. (13) Sealing water four times (commonly known as "Fuwu"). The fourth time the water is sealed. After sealing the water four times, the silk was spread on the grass and dried. (14) Spreading the fog Before and after the sun goes down, the silk is spread evenly on the grass, so that the silk absorbs the moisture on the grass and softens it for 40 minutes. (3) Quality characteristics. 1. Strong, not stained. 2.

Apply to：
Producers within the scope of production of Xiangyun yarn may apply to the Market Safety Supervision Bureau of Shunde District, Foshan City, Guangdong Province for the use of “Special Marks for Geographical Indication Products”, which are reviewed by the Guangdong Provincial Bureau of Quality and Technical Supervision and reported to the AQSIQ for approval. Announced. The statutory testing agency of Xiangyun yarn is designated by Guangdong Quality and Technical Supervision Bureau.