Patent GB-1095281-A (GB)
Title: Improvements in the manufacture of fabric for interlinings
Inventor: KIERNAN GEOFFREY POULTER
IPC: D04H5/02
Filed: 1963-03-22
Abstract: A fibrous fabric in which the fibres are bonded together by needling and/or by the presence of a bonding agent has monofilaments of synthetic polymeric material incorporated at selected areas to provide increased stiffness in those areas.  The fabric is particularly useful for jacket and coat interlinings which may be cut in one piece from the fabric in such a way that the chest and shoulder areas comprise the areas of the fabric which have greater stiffness.  In a preferred method of forming the fabric woven scrim incorporating bands of monofilament weft threads in selected areas is laminated between a non-woven web of fibres bonded by an adhesive bonding agent and a non-woven non-bonded web of fibres.  The three layers are laminated together by needling and/or by impregnating with a bonding agent. After impregnation the fabric may be passed between squeeze rollers to remove excess impregnant, dried, cut into suitably shaped pieces and the later moulded under heat and pressure to provide a shaped interlining.  The fibres and bonding agent may be thermoplastic in view of the moulding step and the bonding agent may be of a type that is thermoplastic before curing only.ALSO:A fibrous fabric in which the fibres are bonded together by needling and/or by the presence of a bonding agent has monofilaments of synthetic polymeric material incorporated at selected areas to provide increased stiffness in these areas.  The fabric is particularly useful for jacket and coat interlinings which may be cut in one piece from the fabric in such a way that the chest and shoulder areas comprise the areas of the fabric which have greater stiffness.  The fabric may be prepared by laying the monofilaments in one or both directions at selected areas in a web of fibres thereafter bonding the fabric by needling and/or by impregnating with a bonding agent. Alternatively a woven leno scrim fabric in which the weft threads comprise bands of the monofilaments alternating with bands of threads of less rigid material may be laminated to a suitable web of fibres. The laminating step may be effected by needling and/or impregnating with a bonding agent and in addition the web of fibres may itself be bonded by needling and/or by a bonding agent before, during or after the laminating step.  In a preferred method of forming the fabric a woven scrim incorporating bands of monofilament weft threads in selected areas is laminated between a non-woven web of fibres bonded by an adhesive bonding agent and a non-woven non-bonded web of fibres.  The three layers are laminated together by needling and/or by impregnating with a bonding agent.  After impregnation the fabric may be passed between squeeze rollers to remove excess impregnant, dried, cut into suitably shaped pieces and the latter moulded under heat and pressure to provide a shaped interlining.  The fibres and bonding agent may be thermoplastic in view of the moulding step and the bonding agent may be of a type that is thermoplastic before curing only.  Suitable materials of which the monofilaments may be formed include polyesters, polyamides and polyolefines.  Viscose rayon thread may form the warp and part of the weft threads in the scrim fabrics employed while fibres referred to which may be employed in the non-woven webs include crimped nylon and cellulose triacetate fibres.  Adhesive bonding agents referred to include butadiene/acrylonitrile synthetic rubber latex applied in aqueous dispersion to the fabric.  Minor amounts of catalysts and other ingredients such as a melamine formaldehyde condensate may be included in the bonding agent.