Leather refers to animal skin that has undergone physical and chemical processes such as hair removal and tanning, and is already denatured and not prone to decay. Leather is composed of natural protein fibers tightly woven in three-dimensional space, with a special grain layer on its surface, which has natural grain patterns and luster, and a comfortable feel. There are two popular types of leather products in the market: genuine leather and artificial leather. Synthetic leather and artificial leather are made from textile or non-woven fabric substrates, coated with polyurethane and treated with special foaming. They have a surface texture similar to genuine leather, but their breathability, wear resistance, and cold resistance are not as good as genuine leather. Today, BAIJIAN will introduce relevant testing knowledge to everyone. BAIJIAN provides authoritative and effective testing reports, mainly covering food, agricultural products, environmental soil, environmental protection, industry standard training, retail services, etc., providing convenient testing services for you. If you need it, you can contact us. Testing scope: Finished leather: shoe upper leather, shoe lining leather, clothing glove leather, sofa leather, car cushion leather, luggage leather, special professional finished leather, etc. Artificial leather (artificial leather): PVC artificial leather, polyamide artificial leather, polyolefin artificial leather, polyurethane artificial leather, polyolefin leather, nylon leather, synthetic leather, etc. Leather clothing: leather coats, leather jackets, leather hats, fashion leather, special professional leather clothing, etc. Fur products: fur mats, fur clothing, fur hats, fur toys, mink products, fox products, etc. Leather chemical raw materials: cationic dyes, sulfide dyes, vat dyes, metal complex dyes, ice dyeing dyes, solvent dyes, direct dyes, acid dyes, dispersed dyes, reactive dyes, alkaline dyes, special professional dyes, surfactants, degreasing agents, chrome tanning agents, retanning agents, tanning aids, dyeing aids, fatliquoring agents, coating materials, fur specific materials, etc. Leather accessories and hardware: formed sole, synthetic leather, synthetic leather, heel, shoe last, shoelace, leather ball, leather basketball, leather volleyball, leather football, special professional leather ball, etc. Physical performance testing of testing items: tensile strength, elongation, tear strength, tensile strength, shrinkage temperature, crack height, crack strength, leather apparent density, coating folding fastness (room/low temperature), sole folding fastness, water absorption, heat resistance, oil resistance, friction resistance, and fur flame retardancy. Chemical performance testing: pH value, hexavalent chromium content, formaldehyde content, prohibited azo dyes, odor, and fur volatile matter content Leather moisture content and volatile matter color fastness: rubbing color fastness, color fastness to water stains, color fastness to sweat stains, and color fastness to light. Content determination: formaldehyde content, hexavalent chromium, azo, heavy metals, PCP, TeCP, OPP, free fatty acid content, organic tin compounds material identification: material identification (leather, fur, artificial leather, synthetic leather, etc.) Analysis items: component analysis, toxic and harmful substance detection, environmental protection detection Azo test

Function of testing report:

1. Project bidding: Issue authoritative third-party CMA/CNAS qualification report

2. Online e-commerce platform entry: Quality inspection report recognized by major e-commerce platforms

3. Used as a sales report: issuing legally effective testing reports to make consumers more confident

4. Papers and research: Provide professional personalized testing needs

5. Judicial services: providing scientific, fair, and accurate testing data

6. Industrial problem diagnosis: Verify the troubleshooting and correction of industrial production problems

100% inspection and testing process:

1. Telephone communication and confirmation of requirements

2. Recommend solutions and confirm quotations

3. Mail samples and arrange testing

4. Progress tracking and result feedback

5. Provide reports and after-sales service

6. If urgent or priority processing is required

Testing and testing characteristics:

1. The testing industry is fully covered, meeting different testing needs

2. Fully cover the laboratory and allocate localized testing nearby

3. Engineers provide one-on-one services to make testing more accurate

4. Free initial testing, with no testing fees charged

5. Self service order delivery for free on-site sampling

6. Short cycle, low cost, and attentive service

7. Possess authoritative qualifications such as CMA, CNAS, CAL, etc

8. The testing report is authoritative and effective, and is generally used in China