The British long-staple cotton is a genus of Malvaceae, with a growth period of 128-130 days. The roots are deep, the leaves are thick, the stems are thick and firm, and the regeneration ability is strong. The cotton planting period is from late March to early April, and the harvesting period is mid-to-late September. Its cotton color is white, creamy or slightly creamy and shiny. Most cotton flaps are large and elastic and mercerized, and some cotton flaps are slightly stiff. Its cotton fiber is moderate, the micronaire value is 3.2-3.7, the fiber quality is good, and it is suitable for spinning 120-200 inch high count yarn. "Long, strong, fine" is the biggest feature of British long-staple cotton.

British long-staple cotton is the main raw material for high-end textiles in the market, and it has a large market in the world. The length of cotton fiber reaches 37cm on average, and its main quality index is maturity of 0.85 or more, length of 33-39mm, linear density of 1.3dtex or less, moisture regain of 9% or less, and fracture specific strength of 36cN/tex or more. The rate is less than or equal to 2.5%. The maturity, length, breaking strength and micronaire content of British long velvet are superior to other varieties. In 2012, he was awarded the National Utility Model Patent Certificate; in 2012-2013, the Sichuan Provincial People's Government awarded the Sichuan Famous Brand Title; in 2012, he was awarded the Mayor Quality Award.

Technical requirements for the quality of British long-staple cotton 1. Variety of Jin Luchang No. 1 long-staple cotton varieties. Second, the site conditions are ≤500m above sea level, the soil texture is clay loam, the pH value is 7.8 to 8.2, the soil layer thickness is ≥25cm, and the organic matter content is ≥1.2%. Third, cultivation management 1. Seeding and seedling: seedlings are planted from late March to early April, and the seeding rate is ≤30kg/ha. 2. Planting: Planting from late April to early May, planting density ≤ 48,000 plants / hectare. 3. Fertilization: Annual application of mature organic fertilizer ≥ 45 tons / hectare. 4. Topping: Beginning in early July, ending within 20 days, retaining 15 to 17 sets of fruit branches. 5. Environmental and safety requirements: The use of pesticides, fertilizers, etc. must comply with relevant national regulations and must not pollute the environment. Fourth, the harvesting period is in early September, the cotton bolls are carried out for 5 to 7 days, and the harvest should be carried out in sunny weather. V. Quality characteristics 1. Sensory features: cotton wool is white and shiny. The cotton flap is hypertrophic and elastic and mercerized. Long fiber, high strength and fineness. 2. 3. Safety and other quality technical requirements: Product safety and other quality technical requirements must comply with relevant national regulations.

Apply to：
Producers within the scope of the British long-staple cotton production area may apply to the Industrial and Commercial Quality Supervision Bureau of Daying County, Sichuan Province for the application of the “Special Mark for Geographical Indication Products”. After examination by the Sichuan Provincial Bureau of Quality and Technical Supervision, the company shall announce the approval of the General Administration of Quality Supervision, Inspection and Quarantine. . The testing mechanism of British long-staple cotton is selected by the Sichuan Provincial Bureau of Quality and Technical Supervision in the testing institutions that meet the qualification requirements.