Machine picking cotton knowledge introduction

1) Foreign machine harvested cotton is mainly produced in farm-type managed countries such as the United States, Australia, and Brazil. There are about 7 million acres of machine-picking cotton.

Features: No foreign fiber, good uniformity, low impurity rate, good consistency.

2) The domestic machine-picking cotton is mainly produced in the Xinjiang Bingtuan (North Xinjiang machine cotton accounts for about 80% of the local cotton, the southern Xinjiang machine cotton accounts for about 40% of the local cotton); There are few in the Mainland, only a few organic cotton-picking demonstration areas are organic. Pick cotton.

There are about 1.5 million mu of machine-picking cotton in China.

Features: Three yarns caused by high impurity rate, mixed with ground film, etc. in cotton.

Second, machine picking cotton and hand picking cotton overview:

1) Machine picking cotton:

One-time picking method

1, advantages:

High yield, easy management of cotton picking, convenient transportation, and low content of foreign fiber, the cost is lower than hand picking cotton (about 2 yuan per kilogram).

2. Disadvantages:

Seed cotton has a high impurity rate, a large number of various types of raw cotton, a high percentage of raw cotton (16%-20%), a poor uniformity, a low strength, a poor maturity, a large amount of dead cotton, and a long seed cotton processing flow. More cotton is thrown when spinning, and yarn hairiness is large.

3, spinning adaptability:

The number of spinnable fibers in cotton is generally 21 carded yarns and air-spun yarns, up to 40.

2) Hand picking cotton:

Layered picking method

1, advantages:

Seed cotton has low impurity content, good raw cotton maturity, less dead cotton, low cashmere rate (11%-12%), good uniformity, and relatively high yield.

2. Disadvantages:

More labor, high picking costs, and more foreign fiber.

3, spinning adaptability:

The number of spinnable fibers in cotton is generally 40, up to 60 or so.

Third, lint price calculation:

Lint price = [price per kg of seed cotton - unit price of cottonseed per kilogram * (1-clothing rate - cottonseed consumption during processing)]/clothing fraction x2000 + processing fee per ton

For example: seed cotton unit price 3.5 yuan / kg, cotton seed unit price 1 yuan / kg, injury consumption 2%, clothing fraction 40%, processing fee 800 yuan / ton

Lint price = (3.5-1*58%)*2000/0.4+800=15400 yuan/ton