HSC Textiles and Design key terms

The basic hair-like unit from which yarns and fabrics are made. Fibres may be natural, such as cotton or wool, or manufactured, such as polyester, and their length, strength and absorbency shape how a fabric behaves.

A short fibre measured in centimetres rather than metres, such as cotton, wool or flax. Short lengths must be twisted together to form a yarn, which gives staple fabrics a softer, slightly hairy surface.

A continuous fibre of indefinite length, either produced naturally by silkworms or extruded through spinnerets in manufacturing. Filaments can be used as single strands or cut into staple lengths for blending.

A continuous strand of twisted fibres or filaments suitable for knitting, weaving or otherwise constructing fabric. The amount and direction of twist affect the yarn's strength, smoothness and appearance.

The direction in which fibres are rotated to form a yarn, described as S-twist or Z-twist according to the slant produced. Consistent twist direction matters when combining yarns in a fabric or design.

The manufacturing process in which a fibre-forming polymer is forced as a thick liquid through fine holes called spinnerets, then solidified. This produces manufactured filaments such as polyester, nylon and viscose.

A manufactured fibre made by dissolving a naturally occurring polymer and extruding it into new filament form. Viscose rayon and lyocell are examples, since the cellulose source is natural but the fibre is factory-made.

A manufactured fibre built from polymers synthesised from petrochemicals or other chemicals rather than from natural polymers. Polyester, nylon and acrylic are common examples, known for strength and low moisture absorbency.

A mixture of two or more fibre types spun together in one yarn or combined in one fabric to combine their strengths. For example, polyester blended with cotton improves durability while keeping some comfort and absorbency.

The way yarns or fibres are arranged to build a fabric, such as woven, knitted, non-woven or felted. Structure strongly influences stretch, drape, strength and stability, so it is chosen to suit the end use.

The simplest woven structure, in which each warp yarn passes alternately over and under each weft yarn. It produces a firm, flat, stable fabric such as calico or poplin with little stretch.

A woven structure in which weft yarns pass over one or more warp yarns in a stepped pattern, creating diagonal lines. Twill fabrics such as denim are strong, drape well and resist showing soil.

The set of yarns running lengthwise along a woven fabric, held under tension on the loom. Warp yarns are usually stronger and more tightly twisted than the crossing weft yarns.

The yarns inserted across the width of a woven fabric, passing over and under the lengthwise warp yarns. Weft yarns are often softer or more textured and can be varied to create pattern.

The firmly finished edge running along both lengthwise sides of a woven fabric, where the weft turns back. It prevents fraying and helps identify the fabric's grain and direction.

A knitted structure formed by interlocking loops that run across the fabric, row by row. Weft knits such as single jersey stretch easily, may curl at the edges and are common in T-shirts.

A knitted structure in which loops are formed along the length of the fabric from many parallel yarns. Warp knits such as tricot are more stable and run-resistant than weft knits.

A fabric made directly from fibres bonded by heat, chemicals or mechanical needling rather than by weaving or knitting. Examples include interfacing and disposable textiles, which do not fray like woven cloth.

A treatment applied to fabric after construction to improve a specific property, such as water repellency, flame resistance or easy-care behaviour. Finishes are selected to meet the demands of the intended end use.

The ability of a dyed or printed textile to retain its colour without fading or bleeding during washing, light exposure, perspiration or rubbing. It is a key quality measure for apparel and furnishings.

A colouring substance that chemically bonds with or is absorbed into fibres to give lasting colour. Different fibre types require different dye classes, which is why blended fabrics can be difficult to colour evenly.

The final purpose for which a textile product is intended, such as children's sleepwear, activewear or upholstery. Clear identification of the end use drives fibre, structure and finish choices.

A written statement that sets out the problem to be solved, the target market, constraints, and the requirements a design must meet. It guides decision-making and provides criteria for evaluating the finished product.

The staged approach designers use to move from identifying a need to producing and reviewing a solution. It typically includes research, idea generation, development, production, and evaluation, with feedback loops at each stage.

The specific group of consumers a product is designed for, defined by factors such as age, gender, income, lifestyle and location. Understanding this group shapes style, price, function and materials.

The collection and analysis of information about consumers, competitors and trends to inform design decisions. It may use surveys, interviews, observation or sales data and helps reduce the risk of poor design choices.

An early working version or sample of a design, made to test construction, fit, materials or function before full production. Prototypes are refined through evaluation and often lead to further iterations.

A trial garment made in inexpensive fabric to test the pattern, fit and proportions of a design before cutting the final material. Adjustments made to the toile are transferred to the pattern.

The set of shaped templates, with markings and seam allowances, used to cut fabric pieces that assemble into a garment. Patterns translate a design into accurate, repeatable construction.

A marked line on a pattern piece showing how it should be aligned with the fabric's lengthwise grain, usually parallel to the selvedge. Correct alignment ensures the garment hangs and wears as designed.

The narrow margin of fabric left beyond the stitching line so pieces can be joined and finished. Its width varies with fabric type and construction method and is marked on the pattern.

A diagonal direction across a woven fabric at 45 degrees to the warp and weft. Bias-cut strips are stretchy and flexible, making them useful for binding curved edges and creating drape.

The way a fabric hangs and folds under its own weight when used in a garment. Drape depends on fibre, yarn, structure and weight, and strongly affects the silhouette a designer can achieve.

The practical purpose a textile product must serve, such as warmth, protection, durability or ease of care. Functional requirements are balanced against aesthetic and cost considerations in design.

The visual and tactile qualities of a product, including colour, texture, pattern, line and proportion, that appeal to the senses. Aesthetic choices communicate style and influence consumer response.

The sequence of businesses and processes that turn raw materials into finished textile products and deliver them to consumers. It includes fibre production, spinning, fabric manufacture, garment making, distribution and retail.

Contracting part of production, such as garment assembly, to an external company, often overseas, rather than completing it in-house. It can lower costs but raises issues of quality control and labour standards.

A business structure in which one company owns and controls several stages of the supply chain, from fibre or fabric production through to retail. It can improve coordination and control but requires significant capital.

Purchasing materials and services in ways that respect workers' rights, safety and fair pay and reduce environmental harm. It is increasingly demanded by consumers and enforced through codes of conduct and audits.

Meeting present needs without compromising the ability of future generations to meet theirs, applied to textiles through reduced waste, lower energy and water use, and responsible material choices. It spans the whole product life cycle.

An economic model in which materials are kept in use through reuse, repair, remanufacture and recycling rather than discarded after one life. In textiles it challenges the traditional take-make-dispose approach.

A structured method for measuring the environmental impacts of a product across all stages, from raw material extraction through manufacture, use and disposal. It identifies where the greatest impacts occur so they can be reduced.

The planned systems and checks used to ensure products consistently meet specified standards throughout production. It differs from quality control, which focuses on inspecting finished output for faults.

The planning and management of the movement and storage of materials, components and finished goods from suppliers to customers. Efficient logistics reduce lead times, costs and stock losses.

The total time between placing an order and receiving the finished goods. Short lead times allow retailers to respond quickly to trends, while long lead times increase the risk of unsold stock.

The substantial practical and written work completed for the HSC course, in which a student designs, makes and evaluates a textile item supported by a folio documenting research and decision-making. It integrates knowledge from all course domains.

The documented record accompanying a major project, showing research, design development, experimentation, production records and evaluation. It provides evidence of the student's thinking and justifies design decisions.

The systematic judgement of a design or finished product against the requirements of the brief and other criteria. It identifies strengths, limitations and possible improvements and should be supported by evidence.

A supporting fabric attached to the inside of garment pieces to add firmness, shape or stability, for example in collars and waistbands. It may be woven, knitted or non-woven and can be fusible or sew-in.