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The two primary concerns during production are to avoid damaging the fibers with heat during the cure stage and to ensure that the fibers are sufficiently bonded to the scrim. Vinyl is generally processed at 190°C but at this temperature the carpet fibers are damaged or deteriorate. To alleviate the need for high temperatures a fast-fusing plasticizer that reduces the temperature required for fusion must be used. Overcoming poor bonding can be corrected by formulating for the appropriate plastisol viscosity that allows controlled penetration of the vinyl into the porous web.
For plastisol-based carpet tiles and floor mats, Jayflex 77 plasticizer is often selected because it offers low processing temperatures and good plastisol viscosity. This plasticizer can be used with Jayflex 215 when an exceptionally low plastisol viscosity is required.
Performance Requirements
The final product must meet several performance and property requirements to have a useful service life. Some key properties are overall dimensional stability, resistance to compression set in the foam layer and high plasticizer permanence. Jayflex 77 is the preferred choice for the foam layer because it offers excellent foam structure and foaming properties. Combining Jayflex 77 in blends with the higher molecular weight Jayflex DINP provides customized properties, such as low volatility or increased permanence.
Jayflex Plasticizers Key Benefits in Vinyl Backed Carpet Tile Applications:
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