The disc mixing method is used to increase the mixing uniformity between the raw materials according to the raw material ratio and color requirements, and the mixing must ensure the uniformity of the raw material mixing. In multi-component orders, it is recommended that the material can be used twice before being put into production.

3. 1. 6 Temperature and Humidity

When producing chemical fiber blended varieties, the requirements for workshop temperature and humidity control are relatively high, and the relative humidity should be 3 to 5 percentage points higher than that of pure cotton varieties. In the production of high-synthetic fiber or multi-component blending orders, the temperature and humidity requirements of the workshop are higher. For example, the relative humidity of the drawing workshop of nylon blended varieties needs to be controlled at 72% to 75%. 3. 2 Fiber damage and carding degree In the spinning process, fiber damage and carding degree is a contradiction.

Excessive carding will increase fiber damage, and vice versa will cause neps growth due to insufficient carding. Due to the low fiber content and high fiber straightness of the chemical fiber blending order, in order to reduce the neps during spinning, it is important to strengthen fiber blending, improve fiber spinnability, and minimize fiber damage. Take into account the spinning quality and output.

(1) Production process: (raw material pretreatment) → (blending) → FA002A automatic cotton picking machine → ZFA035 mixed cotton opener → ZF1102 cotton opener → A076F roll forming machine → FA201B carding machine → FA306A Draw frame (three) → JWF1435 roving frame → JWF1510A spinning frame → (winding).

(2) The process of opening and cleaning cotton adopts the principle of “gradual opening, less impact, early fall and less fall, and fiber damage reduction”. FA002A cotton gripper beater blade protrudes from the rib 2 mm ~ 3 mm, down stroke 1.0 mm, beater speed 510 r / min; ZF1102 cotton opener adopts needle puncher, beater speed 600 r / min; clean cotton The volume of cotton roll is controlled at 400 g / m.

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