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    Fluorescent brightener 4BK-L (for dip dyeing)

    ◆ Main technical index

    1. Appearance: blue-purple transparent liquid

    2. Brightening intensity: 100 (compared with standard product)

    3. Color light: sililar to slight

    4. PH value: 8-10


    ◆ Performance and use

    4BK-L is the latest product developed by our company, which successfully broke through the relevant technical bottlenecks in the industry. It has excellent whitening performance, anionic type, and blue-violet fluorescent color. It is mainly used for whitening and brilliantening cotton and its blended fabrics (for dip dyeing).

    1. It has good alkali resistance and peroxide resistance. It can be applied to the one-bath method of oxygen bleaching and whitening. It is the latest product to replace solid 4BK.

    2. It is easy to use, can be miscible with water in any proportion, and has no dust pollution.

    3. The same dosage as the solid 4BK, but the price is much lower than that of the solid 4BK, which has a very high cost performance.


    ◆ Usage and dosage

    1. 4BK-L: 0.1-1.0%(owf)

    2. Sodium Sulphate Anhydrous: 5-20G/L

    3. PH value: 7-9

    4. Bath ratio: 1:5-40

    5. Dyeing at room temperature, dyeing temperature is 60-100°C

    4. The specific dosage depends on different requirements.


    ◆ Packing

    25KG, 50KG plastic drum or according to user requirements.


    ◆ Storage

    stored in a cool, dry, ventilated place and avoid direct sunlight.


    ◆ Cautions

    1. The product information is for reference, research and appraisal only, and the company does not assume the responsibility and patent disputes caused by this.

    2. If you have any technical or usage problems, please contact our company in time.

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