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Heavy weight fabrics
Wool coatings, etc: Canvas or medium to heavy weight non-woven interfacing.
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Medium weight fabrics
Wool, jerseys, brocades, etc: Light weight canvas, stiffened lawn or organdie, Calico, Synthetics, light to medium weight non-woven interfacings.
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Light weight fabrics
Cotton, silks, linens, fine wools, rayons and other man-made fabrics. Organdie, organza, light weight lawn is suitable fibre, extra light weight to light weight non-woven interfacing.
The underlining fabrics of a garment can be considered tools with which to build a better garment. Each of them underlining, interfacing, interlining and lining has a specific function that influences the garments finished. All the fabric types may not be used in a particular garment; the order of application is always underlining first, interfacing next, then interlining and finally lining.
Interlining is applied to a garment to supply warmth during wear.
Lining serves to give a neat finish to the inside of a garment and also contributes to the ease of putting the garment on and taking it off.
Linings and interlinings are, in effect, extras added to a garment for comfort and, in any case of linings, to conceal the inside of a garment. Neither of these helps in anyway, however, to build in or maintain the shape of the garment.