Lamination system for manufacture of resin impregnated laminates has resin guides with textile spacers forming resin flow channels between upper surface and lower surface in contact with suction layer

摘要

A laminate construction(110) is covered by a separating layer(130) and a resin suction layer(120). Resin guides(150) are positioned on the surface of the suction layer to give more uniform resin distribution across the laminate. Each guide comprises a resin flow channel formed by dimensionally stable spacers with upper and lower surfaces. At least part of the lower surface of each spacer lies adjacent to the surface of the suction layer. Each spacer comprises fixed textile filaments firmly connected to each other in the lower or upper surface of the textile construction. In a first design the resin channel is formed by a looped strip, whose filaments forming the loops are fixed to act as textile spacers. The upper surface of the resin channel is formed by the free ends of the loops. Filaments forming the loops are arranged in pairs, in each of which the free ends of two adjacent loops cross over each other. Each loop has a diameter of 1.5-10mm, preferably 2-5mm, more preferably 3mm. In an alternative design the resin channel is formed between lower and upper surfaces of different forms of knitted constructions, the filaments of which are joined to each other in the resin flow area and fixed to form spacers. In all knitted constructions filaments are arranged in pairs, each of which having two adjacent filaments crossing over each other. In further spacer designs the resin flow channels are formed between upper and lower surfaces of a woven fabric, tufted textile material or fleece. In each case the filaments in the resin flow area are connected to each other to form spacers. In all types of types of laminate construction an adhesive layer may bond the resin channel onto the suction layer(120). A perforated film may be located between the suction and separating layers. A double-sided adhesive strip(170) placed on the suction layer and the resin guide aid(150) has an upper surface in contact with at least some areas of the underside of the resin guiding aid.