Uniform fabric terms: S

S

SA8000

A social certification of a workplace, audited against the standard by a body accredited for the purpose, with a certificate that can be checked on the scheme's own register of certified organisations. It is the labour scheme that genuinely issues a certificate, unlike the audit methodologies it is often confused with. Read the guide on SA8000

SABER

Saudi Arabia's online conformity platform, through which an importer obtains a product certificate and then a shipment certificate of conformity before goods arrive. It implements the SASO standards regime, and because the importer rather than the mill holds the SABER account, the mill's part is supplying accurate composition, test and origin data for the importer to register against. Read the guide on SABER

Sample book

A bound set of small cuttings spanning several different fabric qualities, used to compare weight, weave and handle before a cloth has been chosen at all. It is not a shade card: it shows different fabrics rather than the colour range of one, so a shade liked on a sample book has not been approved on the cloth you will actually buy. Read the guide on Sample book

Sanforising

A mechanical compressive pre-shrinking of woven cloth, so that the shrinkage happens at the mill under control rather than in the buyer's first wash. It is quoted as a residual shrinkage percentage, which is the figure to ask for, because sanforised does not mean shrink free. Read the guide on Sanforising

Sanforized

Cotton-containing fabric that has been mechanically pre-shrunk under steam so most first-wash shrinkage has already happened. It reduces shrinkage rather than eliminating it. Read the guide on Sanforized

Scope certificate

A certificate showing that a named site is certified under a scheme for named processes and product categories, valid for a period rather than for a shipment. A supplier holding a valid scope certificate is entitled to trade certified material, which is not the same as evidence that the cloth you were sent is certified; that requires a transaction certificate.

Scouring

Washing the fabric with alkali and detergent to strip out oils, waxes and residues left from spinning and weaving, so that dye can penetrate evenly. Uneven scouring shows up later as patchy dyeing that no amount of correction at the dye stage fully fixes.

Sealed sample

The approved reference cutting, tagged, dated and identified, that both the buyer and the mill hold a piece of from the same length. Every later delivery and reorder is judged against it, which is what stops a programme drifting from one batch to the next. Read the guide on Sealed sample

Seam slippage

A failure where yarns pull away from each other alongside a stitch line under load, opening a gap at the seam without the thread breaking. It is a construction and setting issue rather than a strength issue, and smooth, loosely set fabrics are the most prone to it.

Seam strength

How much force a stitched seam takes before it fails, which depends on the thread and needle as well as the cloth. It is tested alongside tensile and tear strength, because a fabric that passes on its own can still fail at the seam in a garment. Read the guide on Seam strength

Section 301

The provision of the US Trade Act of 1974 that lets the United States Trade Representative investigate a trading partner's acts, policies or practices and, where it finds them actionable, impose duties in response. It is the statute behind the 10 percent duty a US buyer currently pays on Indian fabric, and it operates investigation by investigation rather than as a standing rate, so more than one Section 301 proceeding can be open against the same country at once.

Selvedge

The finished edge on each side of a woven fabric, formed as the weft turns back. It stops the fabric fraying and is excluded from cuttable width. Read the guide on Selvedge

Selvedge legend

A name, quality mark or width marking woven into the selvedge of a cloth for identification. It sits outside the cuttable width, so it is neither counted in usable width nor cut into garments. Read the guide on Selvedge legend

Serge

A twill with a distinct diagonal rib visible on both faces of the cloth. Long associated with uniform and service dress. Read the guide on Serge

Sett

How closely the warp ends and weft picks are packed in a woven cloth, stated per unit length. A tighter sett gives more cover and more grip on each yarn, which is why it bears on opacity, pilling and seam slippage as much as on weight. Read the guide on Sett

Shade band

The agreed tolerance either side of an approved shade, usually expressed as a light and a dark limit the buyer has signed. A delivery inside the band is accepted; one outside it is not. Setting a band before bulk avoids arguing about whether a small difference counts as a rejection. Read the guide on Shade band

Shade card

A supplier's set of available colours in a given fabric, presented together. Distinct from a swatch, which is a piece of one specific fabric in one specific shade. Read the guide on Shade card

Shade family

A group of closely related shades built on the same base colour, such as several navies or several khakis. Naming the family early narrows a shade card fast, well before any single shade is approved. Read the guide on Shade family

Shade standard

The approved physical reference that every production lot of a program is matched against. Matching each lot to the previous delivery instead is how a program's colour drifts. Read the guide on Shade standard

Shipping bill

India's export declaration, filed with Indian Customs before the goods leave. It sits on the exporter's side of the transaction and is not a document a buyer normally receives, which is why an importer asking for one is usually asking for the wrong paper.

Shirting

Woven cloth made for shirts and blouses, lighter and finer than suiting, where opacity, collar behaviour and wrinkle recovery matter more than abrasion resistance. It is specified and priced separately from the suiting on the same programme, and the same shade name on both will not read identically. Read the guide on Shirting

Shrinkage allowance

Extra length a cutter adds to pattern pieces so that garments come out at the right size after washing shrinks the cloth. It should be set from the fabric's measured residual shrinkage rather than from a rule of thumb. Read the guide on Shrinkage allowance

Shuttleless loom

A weaving machine that inserts the weft by rapier, air jet or projectile instead of by a flying shuttle. It runs faster and quieter than a shuttle loom and gives a more consistent pick density, and it leaves a tucked or fringed selvedge rather than a woven one.

Singeing

Passing fabric over a flame to burn off the protruding surface fibres before dyeing and finishing. It is one of the main defences against pilling and it is what gives a cleaner, flatter surface and sharper colour on a finished suiting. Read the guide on Singeing

Single transformation

An origin rule satisfied by one qualifying manufacturing operation in the exporting country, rather than requiring two or more stages. For woven man-made fabric the qualifying operation is usually weaving, so a mill that weaves imported yarn into cloth can meet the rule without spinning the yarn itself.

Size mix

The distribution of garment sizes inside one order. It is why a per-uniform meterage is a planning figure and not a yield: a run weighted towards the larger sizes consumes more cloth at the same width, so an estimate built on an average runs short before the last size is cut, and the top-up lands in a different dye lot. Read the guide on Size mix

Sizing

A temporary protective coating applied to warp yarns before weaving so they survive the abrasion of the loom. It is washed out again at the desizing stage, and size that is unevenly applied or incompletely removed is a common origin of woven defects. Read the guide on Sizing

Skewing

A finishing fault where the weft runs at a slope across the fabric rather than square to the selvedge. Like bowing, it shows up worst on checks and stripes. Read the guide on Skewing

Slub

A short thickened section in a yarn, showing in the woven fabric as a small raised irregularity. Occasional slubs are normal; frequent ones point to a yarn problem. Read the guide on Slub

SMETA

An ethical trade audit methodology delivered through the Sedex platform. It is not a certification: a site holds a dated audit report with findings and a corrective-action plan, so a tender clause asking for a supplier to be SMETA certified is asking for something that does not exist. Read the guide on SMETA

Softener

A finishing chemical applied to make cloth feel smoother and more pliable. It is part of the finish recipe rather than the construction, so two fabrics with identical blend, count and GSM can feel different, and the effect can diminish over repeated industrial laundering. Read the guide on Softener

Soil release finish

A finish that lowers a fabric's affinity for oily soil so that laundering lifts it instead of setting it, specified for kitchen, workshop and food-service wear. Like other applied finishes it is consumed by washing over time rather than lasting the life of the garment. Read the guide on Soil release finish

SONCAP

The Standards Organisation of Nigeria Conformity Assessment Programme, Nigeria's pre-export verification of conformity scheme. Goods in scope need a certificate issued before shipment, obtained through an appointed inspection body, and a consignment arriving without one can be held at the Nigerian border regardless of its actual quality. Read the guide on SONCAP

Spectrophotometer

An instrument that measures colour numerically, used in shade approval to quantify how far a submission sits from the standard. It supports visual assessment rather than replacing it. Read the guide on Spectrophotometer

Spirality

A twisting distortion where seams rotate around the body after washing, most familiar in knitted garments but also visible where a woven fabric was finished under uneven tension. It is a construction and finishing fault rather than a stitching one.

Spray rating

A graded result from spraying water onto a mounted fabric specimen and comparing the wetted face against a picture scale. It is how a water-repellent finish is reported, and the grade is expected to fall after washing, so the useful figure is the one measured after a stated number of wash cycles. Read the guide on Spray rating

Staggered delivery

A supply arrangement where a single awarded quantity is delivered in scheduled tranches instead of one consignment. It reduces the buyer's storage and cash exposure and it commits the supplier to holding shade consistency across lots produced weeks or months apart. Read the guide on Staggered delivery

Staging category

The code in a trade agreement's tariff schedule that says how fast a duty comes down on a given line. Category A normally means the duty goes to zero on the day the agreement enters into force, while other categories spread the cut over a stated number of annual steps. A base rate on its own tells you nothing until you read the staging category beside it.

Staining

Colour transferring from a fabric onto a different fabric during a fastness test, rated separately from the change in the fabric's own shade. A wash fastness result usually carries both numbers, and the staining grade is the one that predicts a white shirt picking up colour from a dark trouser in the same load. Read the guide on Staining

Staple fibre

Fibre in short cut lengths that is spun into yarn, as opposed to continuous filament. Cotton and viscose are naturally staple; polyester is cut into staple lengths when it is meant to blend with them. Staple blends give a drier, more cotton-like handle than filament yarns of the same composition. Read the guide on Staple fibre

Staple length

The length of the individual fibres a yarn is spun from. Longer staple gives a smoother, stronger, less hairy yarn, which is part of why two fabrics at the same blend ratio and the same GSM can feel different and pill differently. Read the guide on Staple length

Starting mark

A line running across the width of the cloth where a loom stopped and restarted, caused by the warp relaxing during the stoppage so the first picks after the restart sit at a different density. It reads as a thin or thick line depending on the tension at restart. Read the guide on Starting mark

Stenter

The finishing machine that grips fabric along both edges and carries it through a heated chamber to dry, set and apply finishes at a controlled width. Faults introduced here, such as bow or a set crease, are difficult or impossible to reverse afterwards. Read the guide on Stenter

Sublimation printing

A printing method where disperse dye is transferred into polyester as a gas under heat, so the colour sits inside the fibre instead of on top of it. It gives a print that cannot crack or peel, and it works on polyester-rich cloth only, which is why it is not an option for cotton-rich uniforms. Read the guide on Sublimation printing

Suiting

Woven cloth made for trousers, jackets and skirts, typically heavier and more opaque than shirting and usually in a twill or plain weave. On a uniform programme it is the bottom half of the specification and the part that has to survive daily wear rather than daily washing. Read the guide on Suiting

Sulzer

A projectile-type shuttleless loom, where the weft is carried across the shed by a gripper projectile. It is a common machine class in Indian suiting weaving, and it is the type our own weaving unit runs. Read the guide on Sulzer

Surface resistivity

A measure of how readily charge moves across a fabric's surface, used to report an antistatic finish. A lower resistivity means charge dissipates rather than accumulating, which is the property an electronics or fuel-handling environment specifies. Read the guide on Surface resistivity

Swatch

A physical piece of a specific fabric in a specific shade, used to judge colour, weight and handle. The strongest possible reference when asking for a shade match. Read the guide on Swatch

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