Thermoplastic adhesives are available in sheet form for Plush Fabric For Sofa (ROUROUROU) lamination purposes, or they can be spliced to a specific width in tape form. Since these adhesives are normally applied using a two-step process, they are generally supplied with a backing paper commonly referred to as a ‘release paper’ to prevent the adhesive from contaminating the upper ply prior to final bonding. Typically, the tape is applied to the fabric in the first step, then the release paper is manually peeled; the second step (another machine operation) completes the join. When applying the adhesive using manual methods the adhesive is normally applied and pre-tacked with a heated tacking iron as this allows some repositioning. Once the release paper has been removed and the second bond is formed repositioning is no longer possible.

Different seams require different types of equipment, dependent on the shape or curvature of the seam and whether the component is destined to be formed into a tubular shape when joined, such as a sleeve or trouser leg.

A variety of equipment can be used to bond seams: flat-bed press (similar design to Hoffman press); stationary press with moulded buck/mould/form; traditional fusing presses such as tray press or Rollermatic press; rotary machines (usually a pair of rollers are used in tandem, one for applying or tacking the adhesive and one for bonding).

Each has advantages and limitations. However, regardless of the equipment being used, three factors must be precisely met in order to achieve an appropriate and consistent bond: 1. Heat – this is the heat energy required at the interface between the two plies in order to melt the adhesive. 2. Pressure – this is the pressure required to assist the adhesive to flow into the fabric; too much or too little will critically affect the strength of the bond. 3. Time – the time duration required to allow the adhesive to flow into the fabric.

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