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The first step should be confirming whether the synthetic leather products contains any Substances of Very High Concern (SVHC) as defined by the EU’s REACH. People can then find out whether the product contains harmful ingredients. The synthetic leathers produced by Sunta Chemical are in compliance with REACH specifications, users can refer to the SGS testing report (SGS testing report) for confirmation.
It is very important to \"confirm the use of the synthetic leather\" when determining the customer\'s type of application, product usage and environment to choose products that have the appropriate physical and chemical properties and qualities. In addition, Sunta can provide customers with a selection of samples based on the synthetic leather’s appearance, thickness and texture to match the customers’ standards.
Under normal usage conditions, the durability of PU leather can be designed to be used for 3 to 10 years. The service durability of PVC leather can be designed to be used for 5 to 10 years. The main difference between the two is in the duration of the adhesive’s hydrolysis resistance as PVC is unaffected by hydrolysis.
The cleaning and maintenance of artificial leather is mainly using dry and wet cloths. A neutral cleaning agent can be used as a supplement when dealing with stains that are more difficult to clean. The cleaning agent is then wiped off with a damp cloth and customers must make sure to thoroughly wipe the cleaning agent off of the leather as it affects the durability of the synthetic leather. If there are environments with specific maintenance requirements such as using alcohol for disinfection at hospitals or public areas that require using solvent-containing quick-drying cleaning agents or fragrances, customers can choose to use artificial leather products that have been received stain-resistant treatment in advance for improved protection against stains.
Sunta’s synthetic leather products are mainly divided into two major categories: PU and PVC leather fabric.
[PVC leather fabric]
- [PU leather fabric]
- Dry Process - Apply PU resin on the release paper and attach the base fabric. Complete the PU leather product after separation from the mold.
- Wet Process - Apply PU on the base fabric, dip it in water and dry it to form a foaming substrate, and then use a dry manufacturing process to apply the substrate to various film patterns to complete the PU leather fabric.
- Coating Process - Apply a layer of PVC and foaming coat onto the release paper, bond the base fabric with the adhesive layer, and process the released materials after separation from the mold to complete the PVC leather fabric.
PU faux leather fabric contains polyurethane resin, filler, pigments, minimal solvent, and base material if applicable. PVC faux leather fabric contains polyvinyl chloride resin, filler, pigments, environmentally-friendly plasticizer and base material if applicable.
Synthetic leather (also referred to as “leatherette” or “vegan” leather) is toned with "pigment,” which is relatively stable compared to the "dyestuff" used for genuine leather, and the color holds very well and color migrations are very unlikely.
Synthetic leather and coated fabric products are less prone to molds than genuine leather, and if customers want to completely prevent molds growing on the product’s surface, an anti-mildew and antibacterial formula can be used as based on the customer’s specification standards.
It is recommended to use the following preservation methods:
- Stacked horizontally. If the rolled products of leather or sheet are placed upright or stacked vertically, the bottom of the rolls are very prone to deformation.
- Rolls with larger diameters or heavier weight should be placed on the bottom, and the lighter rolls should be stacked at the top in order to avoid partial indentation and deformation.
Synthetic leather has two main themes of "decomposability" and "emissions" in response to being environmentally-friendly.
- PU leather fabric is recognized as an environmentally-friendly material because it is not resistant to hydrolysis, but specially-synthesized PU leather has a hydrolysis resistance of up to 10 years, and has a relatively high price.
- PVC leather fabric itself is not hydrolyzed, but it can be recycled and reused.
- General PU products emit volatile organic compounds (VOCs) as they contain solvents, but water-based and solvent-free PU products have no VOC emission issues.
- PVC itself does not emit VOCs, solvent-based primers contain minimal amounts of VOCs. Currently, water-based primers can overcome this issue.