Liquid detergent for black fabrics Żwirek 1 L — concentrate for dark clothes

Żwirek liquid detergent for black fabrics (1 L) is a concentrated formula designed to clean and protect dark and black clothing. It is suitable for both machine and hand washing and formulated to work with cotton, synthetic and mixed fabrics. The product removes everyday dirt and common stains while aiming to preserve color depth and reduce fading, helping garments retain consistent dark tones over multiple washes.

Advantages

The concentrated composition delivers effective cleaning with a smaller dose, reducing packaging waste and storage space. Ingredients are selected to be compatible with dark dyes, helping to minimise color loss and prevent greying. The detergent is suitable for various temperatures and washing modes, providing flexibility for different fabric care requirements without aggressive abrasion.

Suitable for

• Washing black and dark-coloured cotton garments
• Cleaning synthetic and mixed-fibre clothing that require colour protection
• Delicate dark items washed by hand or in a washing machine
• Regular maintenance washes to preserve garment appearance

Key specifications

• Volume: 1 litre concentrated liquid
• Formulation: liquid concentrate suitable for reduced dosing
• Fabric compatibility: cotton, synthetic fibres and blends
• Use types: machine wash and hand wash
• Primary functions: cleaning, stain removal, and colour preservation for dark fabrics

How to use

Measure the recommended dose according to the level of soiling and the load size, then add the detergent to the washing machine detergent compartment or dissolve it in water for hand washing. For machine washing, select the cycle appropriate for the fabric type and temperature. Avoid overdosing to prevent residue on textiles; for heavily soiled items, pre-treat stains with a small amount of concentrated detergent before washing. Rinse thoroughly and follow garment care labels for drying.

Usage recommendations

For best colour retention, wash dark items inside out and separate them from light-coloured laundry. Use the minimum effective dose for each wash and choose lower washing temperatures when possible to reduce dye loss and energy consumption.