In the daily operation of professional laundry shops, mud stains from rain, outdoor activities, and accidents are common. However, they rank on the list of customer complaints or at the top of the list of rewash all year round. Many laundry operators face such a challenge. After washing, surface soil is removed from garments. But tawny stains leave and cannot be removed. Stains may penetrate into the garment fibers. This not only affects customer experience but also directly damages the professional reputation of the store.
This article will analyze this complex mud stain from a scientific view. And it will provide a professional solution combining chemical formulations and mechanical actions. By mastering this solution, laundry shops will significantly improve service quality and customer satisfaction. Kingstar professional laundry equipment is essential to convert this concept into consistent and efficient operation.
Why Mud Stains Are Difficult to Remove
Mud stains are not just simple soils. They contain multiple micro components:
– Inorganic mineral particles (silica and clay): They have hard texture. And they are easy to penetrate into fibers.
– Colloid (plant gums and soil colloids): They develop sticky films in water. They can bind other stains to the fiber surface.
– Pigments (humic substances and metal ions): They penetrate into fibers. After drying and solidifying, they develop yellowing and graying marks.
– Organic protein residues (microbial remains): They denature with time. Close connection with fibers worsens stains and odors.
A regular laundry process depending on surfactant fails to handle this complex structure “particles + colloid + pigments + protein”. Wrong pre-treatment (such as hand cleaning) worsens the final cleaning performance.
Chemical Formulations
An efficient mud stain pre-treatment agent or special laundry builder should contain the following key components.
Protease enzyme: Precisely decompose the organic protein residues. Cut the connection between the residues and fibers. It is a key to processing the old mud stains.
Penetrating agent: Fast wet and penetrate the hydrophobic colloid barrier outside the mud stains. Cleaning components can directly reach the core stains.
Chelating agent: Bind the calcium and magnesium ions in water and the metal ions in mud stains to soften water. This prevents stains from accumulating. And it helps break up mineral particles.
Soil dispersant: Wrap and disperse the fine stain particles. They have been decomposed and removed in wash liquor. This prevents soil re-deposition.
Special surfactant & builders: Emulsify and disperse grease and colloid. It reduces the bonding power between soils and fibers.
Professional laundry shops can choose proper stain removers on the market according to the above principles. They can also cooperate with reliable chemical suppliers to develop special pre-treatment products. When removing stains, dab the agent or its diluent onto the dried stains without surface dirt. Leave it to penetrate and react for 5-10 minutes.
Mechanical Actions
Chemical pre-treatment has loosened stain structures. Then, the strong mechanical actions can thoroughly remove soil from fibers. Kingstar laundry equipment plays an important role in this step.
- Pre-treatment
For a large area of mud stains, use a professional high-pressure water gun (low-pressure model) to flush first. This can remove most loose stains.
Put the pre-treated garments into a Kingstar SHS-2025 washer. Select the gentle soak program. The regular rotation of the inner drum ensures complete touch and reaction between chemicals and stains. The proper rotation prevents stain spreading caused by excessive mechanical action.
- Main wash
– Programmed washing
A Kingstar SHS-2025 washer supports adjustable washing cycles for mud-stained garments. It includes:
Wash temperature (30-40℃): It prevents protein stains from solidifying under a high temperature.
Wash time & spin speed: Mechanical action helps remove stains. It also prevents garment damage.
Water level & process: Ensure the wash liquor concentration. It helps achieve effective rinsing. It can also remove all floating soil particles.
– Precise dosing
The equipment can connect to a chemical dosing system. This ensures dosing detergents and enzyme formulations with the proper concentration at the correct time. The final cleaning performance can be maximized.
- Finishing & drying
After extraction, use a spotting gun to remove residual tiny stains.
Thorough drying is very important. Residual moisture may cause stains or odors. The Kingstar dryer has a hot-air circulation system. It precisely controls the temperature. Therefore, garments (especially thick parts) can be thoroughly dried. They come out clean and fresh.
Q&A
Q1: When receiving mud-stained garments, what’s the first step?
A1: Do not directly soak or hand wash them in water. The first step is:
After mud stains have dried, use a soft brush (or hand) to gently remove or dust the surface dirt. This can remove more than 50% of the solid particles. It prevents them from damaging fibers in the later wet cleaning or becoming mud that is hard to clean.
Q2: For mud stains on different fabrics, what’s the handling difference?
A2:
Cotton, linen, chemical fiber & blended fabric: They have strong tolerance. They can be handled based on the above process, including enzyme pre-treatment and standard machine cleaning.
Protein fibers (such as wool and silk): They should be handled carefully. Don’t use protein enzyme or reduce its concentration, and shorten the processing time. This prevents damage to protein fabrics. Use cold water or low temperature to wash. Select the gentle cycle (“wool/silk”) of a Kingstar washer. Ensure the washing process in a low speed with mechanical action.
Q3: Do the professional detergent formulations mentioned in the article damage garment colors or fibers?
A3: The formulations are based on targeted stain removal in a neutral and gentle way. Under a correct concentration, it is safe for the colors and fiber strength of common cotton, linen, and chemical fibers. The key lies in a thorough rinse. Kingstar washer is equipped with multiple high-water-level rinse cycles. It can effectively remove chemical residues. For colorful garments, test on unobtrusive areas before first using.
