The sponge wipe block is a cleaning tool made from a sponge base, processed by cutting, laminating, and surface treatment. Its porous structure and flexible form make it widely used in home, kitchen, and industrial settings for effective cleaning and stain removal.

1. Core Materials and Structure Types

1. Basic Sponge Base
   Commonly made from polyurethane sponge, with some versions using cellulose sponge (natural material). The characteristics differ significantly:

• Polyurethane Sponge: Uniform pores, good elasticity, strong water and oil absorption, adjustable density (low density soft and fluffy, high density firm and durable), wear-resistant; main material for household sponge blocks.

• Cellulose Sponge: Made from wood pulp and cotton fibers, biodegradable, fast water absorption, becomes flexible when wet; ideal for cleaning dishes, fruits, and vegetables in direct contact with food.

2. Common Composite Structures
   Many sponge blocks use composite designs to enhance cleaning power:

• Single-Sided Abrasive Layer: One side sponge, other side coated with scouring material or sanding layer; suitable for stubborn stains on pans, stoves, etc.

• Double-Sided Functional Composite: Two sides with different sponge densities; soft side cleans delicate surfaces, firm side handles light tough stains, balancing gentle cleaning and stain removal.

• Multi-Layer Sandwich Structure: Central layer may include water-absorbing resin or antibacterial layer, improving water absorption and inhibiting bacterial growth; suitable for humid environments.

2. Key Processes and Functional Treatments

1. Forming Process

• Cutting: Large sponge blocks are cut into square, round, or shaped pieces (e.g., wavy edge, cartoon shapes); edges may be smooth or slightly rough.

• Lamination: Heat or adhesive bonding attaches sponge to abrasive layer; bond strength tested to prevent delamination.

• Compression: Some sponge blocks are compressed and shaped; they expand upon contact with water, making them convenient for storage.

2. Functional Treatments

• Antibacterial: Silver ions or quaternary ammonium salts added to inhibit E. coli, Staphylococcus aureus, and other bacteria, reducing odors in humid conditions.

• Deodorization: Optimized pore structure or activated carbon layer absorbs odors, extending lifespan.

• Hydrophilic/Oleophobic Treatment: Surface coating increases water absorption while preventing oil adhesion, simplifying rinsing.

3. Common Specifications

4. Core Performance Advantages

1. Dual Water & Oil Absorption
   Porous structure absorbs water and oil quickly; can clean surfaces without repeated soaking; water and oil easily released upon squeezing, allowing reuse.

2. Soft & Non-Scratching
   Sponge surface is gentle; safe for glass, ceramics, stainless steel; ideal for dishes, appliance exteriors, or car interiors.

3. Flexible, Convenient & Cost-Effective
   Compact, easy to hold, customizable sizes; low unit cost makes frequent replacement affordable.

4. Wide Application Scenarios
   Different sponge structures fit various cleaning needs in homes, kitchens, and industrial environments.

5. Applications

1. Kitchen Cleaning: Dishes, countertops, stove, range hood; abrasive versions remove pan or grill residues.

2. Household Cleaning: Tables, floors, windows, bathroom tiles; furniture dust and water marks.

3. Industrial Cleaning: High-density sponge blocks for machinery, metal components; abrasive versions for light rust removal.

4. Special Uses: Cellulose sponge for cleaning fruits/vegetables; compressed sponge for travel convenience.

6. Usage & Care Notes

1. Usage Restrictions

• Do not use abrasive sponges on painted, acrylic, or screen surfaces.

• Avoid prolonged exposure to strong acids or bases to prevent material degradation.

• Rinse thoroughly after contact with food surfaces to remove cleaning agents.

2. Care Instructions

• Rinse with clean water after use, squeeze out excess liquid, air-dry in a ventilated area to prevent bacterial growth.

• Replace regularly (1–2 weeks for kitchen use) to prevent bacterial accumulation.

• Do not expose to high heat; avoid flames or microwaves/ovens.