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Water-based Resins for Leather

waterborne leather

The manufacturing technology of synthetic leather with waterborne polyurethane resin and aqueous ecology synthetic leather is listed as the "technical development guide for industry key generality" by the national engineering department, and is also an important development trend recognized by the polyurethane synthesis leather industry.

After many years of hard work, the Huada chemical group invested tens of millions of dollars to the research and development of waterborne ecological synthesis leather manufacturing technology, industrialization and achieved a phased success. At present, the company has successfully launched six series of water-based ecological leather products with water-based environmental protection and excellent performance.

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Water-Based Leather waterborne leather
Water-Base PU Anti-Slip Leather

Sports and fitness have become a fashion in people's lives. Since sports glove materials come into direct contact with the skin, people are increasingly concerned about the health and environmental friendliness of products close to the skin. Huada Company takes environmental protection as its mission and technological innovation as its driving force. After years of dedicated research, it has developed a landmark new generation of water-based eco-friendly synthetic leather. Water-based eco-friendly synthetic leather uses non-toxic and environmentally friendly water-based PU as raw material, avoiding the residual organic solvent problems of traditional solvent-based PU products. It represents a brand-new upgrade to traditional solvent-based PU leather products. The product's environmental friendliness is outstanding, ensuring that people receive green and environmentally friendly product protection close to their skin while exercising.
 

Water-based PU Anti-Slip Leather is a group of materials developed for gloves used in sports, skiing, labor protection, etc. It features excellent environmental performance, outstanding anti-slip properties, and physical/mechanical properties, while also possessing functional characteristics such as fluorine-free waterproofing. It is the preferred material for the new generation of green and environmentally friendly water-based gloves.
 

Key features and indicators:

1. Good labor protection performance (EN 388 standard): Abrasion resistance Level 3, Cut resistance Level 2;

2. Good environmental friendliness (US EPA 8270D: 2007, GC-MS): DMF ≤ 10mg/kg;

3. Good hydrolysis resistance: 10% NaOH ≥ 24h; 70℃, 95% RH ≥ 21d;

4. Good waterproofness (GB/T 4745-2012): Spray test water resistance ≥ Grade 3; does not contain PFOA, PFOS;

5. Good color fastness (GB/T 3920-2008): Dry ≥ Grade 4, Wet ≥ Grade 3;

6. Good breathability (GB-T 12704.2-2009, evaporation method): ≥ 2000g/m²*24h

Water-Base PU Sofa Leather

For many years, people have paid close attention to environmental issues in homes and workplaces. Non-toxic and harmless working and living environments are guarantees for people's health, thus eco-friendly furniture has become deeply rooted in people's minds. Traditional furniture decoration and automotive interior materials will increasingly emphasize product environmental friendliness, zero VOC, and other characteristics to ensure healthy air in living and working spaces.


Water-based eco-friendly sofa leather is developed for the traditional upholstered furniture sector. It features excellent environmental friendliness, extremely low volatile organic compounds (VOC), fully meeting people's environmental demands for furniture products, while also possessing outstanding durability, abrasion resistance, and other physical and mechanical properties.


Key features and indicators:

1. Good environmental friendliness (US EPA 8270D: 2007, GC-MS): DMF ≤ 10mg/kg;

2. Good hydrolysis resistance: 10% NaOH ≥ 24h; 70℃, 95% RH ≥ 21d;

3. Peel strength (GB/T 8949-2008): Warp/Weft ≥ 30N/3cm;

4. Abrasion resistance (Taber, H18, 500g): ≥ 5000 revolutions.

5. Anti-blocking (GB/T 8949-2008): ≥ Grade 4

Water-Base PU Garment Leather

Existing leather garment fabrics increasingly use PU synthetic leather products. However, the environmental issues of leather products processed with traditional solvent-based PU resins are receiving increasing attention. Garment fabrics are close to the skin, and traditional solvent-based PU leather products have the problem of residual organic solvents, which can easily pose a hazard to human health.


Water-based eco-friendly garment leather uses water-based PU as raw material and is processed using a brand-new water-based wet manufacturing process. It eliminates the problem of residual organic solvents found in traditional solvent-based PU leather products and has distinct environmental friendliness. At the same time, it exhibits more outstanding performance characteristics: the product's softness is significantly improved, durability and physical properties are superior, and product resilience and embossing shape retention are more excellent.

Key features and indicators:

1. Good environmental friendliness (US EPA 8270D: 2007, GC-MS): DMF ≤ 10mg/kg;

2. Good hydrolysis resistance: 10% NaOH ≥ 24h; 70℃, 95% RH ≥ 21d;

3. Peel strength (GB/T 8949-2008): Warp/Weft ≥ 15N/3cm;

Water-Base PU Shoe Clip Leather

Water-Based PU Shoe Clip Leather uses environmentally friendly water-based PU resin as raw material and is processed using a brand-new wet manufacturing process. The resulting Water-based PU Shoe Clip Leather possesses exceptionally excellent water absorption and abrasion resistance characteristics. It overturns the manufacturing process of traditional solvent-based PU shoe linings. The high density of the surface layer of water-based PU shoe lining is closer to the structural characteristics of high-end genuine leather linings. The inherent water absorption and moisture absorption properties unique to water-based polyurethane add functionality to the water-based PU shoe lining, endowing Water-based PU Shoe Clip Leather with good simulation properties. Not only does it visually resemble genuine leather lining, but its functional and environmental performance is also superior to traditional solvent-based shoe linings, making it the preferred choice for high-end shoe material linings currently.
 

Key features and indicators:

1. Good environmental friendliness (US EPA 8270D: 2007, GC-MS): DMF ≤ 10mg/kg;

2. Good hydrolysis resistance: 10% NaOH ≥ 24h; 70℃, 95% RH ≥ 21d;

3. Peel strength (GB/T 8949-2008): Warp/Weft ≥ 15N/3cm;

4. Abrasion resistance (Taber H18, 500g): ≥ 2000 revolutions.

Water-Base PU Case And Had Leather

Water-based PU Case and Bag Leather products are targeted at high-end genuine leather luggage fabrics. Using water-based PU as raw material and employing special water-based processing technology, they fully leverage the characteristics of water-based resins. The products have an extremely high simulation of genuine leather appearance, with very fine genuine leather wrinkles on the surface, and the hand feel and texture are indistinguishable from genuine leather. The special water-based PU imitation leather structure gives Water-based PU Case and Bag Leather excellent abrasion resistance and scratch resistance. Upon its launch, Water-based PU Case and Bag Leather gained favor with international brands and is currently the preferred choice for high-end luggage materials.
 

Key features and indicators:

1. Good environmental friendliness (US EPA 8270D: 2007, GC-MS): DMF ≤ 10mg/kg;

2. Good hydrolysis resistance: 10% NaOH ≥ 24h; 70℃, 95% RH ≥ 21d;

3. Peel strength (GB/T 8949-2008): Warp/Weft ≥ 20N/3cm;

4. Abrasion resistance (Taber H22, 1000g): ≥ 7000 revolutions.

Water-Base Imitation Microfiber Suede

The market demand for traditional suede materials is large, mostly consisting of microfiber PU leather. However, microfiber suede materials suffer from issues like pilling, poor abrasion resistance, color fastness, and color migration. Water-based Imitation Microfiber Suede is a high-end suede material developed using water-based PU resin as raw material. It features variable suede styles, non-pilling, good color fastness, and good resistance to color migration. It can be used for functional fabrics such as shoe linings, gloves, and electronic fabrics.
 

Key features and indicators:

1. Good environmental friendliness (US EPA 8270D: 2007, GC-MS): DMF ≤ 10mg/kg;

2. Good hydrolysis resistance: 10% NaOH ≥ 24h; 70℃, 95% RH ≥ 21d;

3. Good color fastness (GB/T 3920-2008): Dry ≥ Grade 4, Wet ≥ Grade 3;

4. Good resistance to color migration (ISO 17701): ≥ Grade 4.

5. Good abrasion resistance (EN 388 standard): Abrasion resistance Level 3-4.