Course contents
Foundation · Course 2: The Companies You Deal With · Lesson 4 of 5

Textile mills: spinning, knitting, weaving, dyeing and finishing as separate or combined businesses

Level: FoundationTime: 40 minutesOrder used: A (the T-shirt)Tool: Company directory
This lesson is for anyone new to the apparel and textile trade: a factory owner, a merchandiser, a buyer, a student, or someone in a supporting business. No previous lesson is needed, though lesson 1.1 first used the word "mill". Money figures are teaching examples in US dollars. At work, use the real numbers of your own order.
BuyerNorthline Apparel (overseas clothing brand)
FactoryDelta Garments (garment factory)
ProductBasic cotton T-shirt, one colour
Quantity15,000 pieces
FabricKnitted cotton jersey, about 3,000 kg
Timeline16 weeks from confirmed order to shop rack
02Opening

This page teaches you the four jobs a "mill" can mean, so you know exactly what a fabric supplier can and cannot do

This lesson is for anyone who deals with fabric suppliers, or reads a purchase order that names one: a merchandiser, a buyer, a sourcing manager, or someone starting out in the trade. Lesson 1.1 used the word "mill" for any company that makes yarn or fabric. That word hides four different jobs, done with completely different machines. A merchandiser who treats every mill as the same kind of business ends up asking a company for something it physically cannot make.

At work, this shows up as a supplier list with company names and short descriptions, or a capability sheet a mill sends you. You have to read past the word "textile" and work out exactly which of the four jobs a company does, because that decides what it can quote you, what it needs from you to start work, and what it hands over next. Get this wrong, and you can lose days chasing a fabric quotation from a company that was never able to supply it. This lesson mainly teaches the product flow: how fibre becomes the fabric your factory needs.

03Before you start

What you need, and what this lesson does not cover

You need: lesson 1.1's ten stages (spinner, knitting mill, dyeing and finishing mill are three of them). No other lesson is required.

By the end of this lesson you can:

  • name the four core textile mill processes: spinning, knitting, weaving, and dyeing and finishing;
  • say what each process buys, what it does to the material, and what it sells;
  • explain why a mill built for knitting cannot produce woven fabric, and the other way round;
  • read a mill's capability sheet and work out which process, or processes, it actually performs;
  • recognise when a mill is combined (doing more than one of the four jobs) rather than a single-process business.

Not covered here: how integrated groups combine several stages under one owner (lesson 2.2), how to read a full supplier capability sheet across every company type (lesson 2.5), and fabric consumption calculated in technical detail (covered fully in a later course).

04Key terms

Words you will meet in this lesson

TermMeaning
Spinning millSpins fibre into yarn. Buys fibre by weight, sells yarn by weight.
Knitting millKnits yarn into fabric by looping it. Buys yarn, sells greige (undyed) fabric, usually by weight.
Weaving millWeaves yarn into fabric on a loom. Buys yarn, sells greige fabric, usually by the metre.
Dyeing and finishing millDyes greige fabric the agreed colour and finishes it, for example softening it or stopping it from shrinking.
Greige fabricFabric, knitted or woven, not yet dyed or finished. Also spelled "grey" fabric.
Warp and weftThe two yarn sets crossed on a loom: warp runs the length, weft runs across it.
LoomThe machine a weaving mill crosses warp and weft on. A knitting mill has no looms.
Combined millOne company running more than one of the four processes, for example a mill that both knits and dyes.
Capability sheetA document a mill sends listing the machines and processes it actually has on site.
05Teaching
The rule

A "mill" is a general word; spinning, knitting, weaving, and dyeing and finishing are four different jobs done to the material, and one company may do only one of them or several combined

Lesson 1.1 called any company that makes yarn or fabric a "mill". That is true, but it is not specific enough to work with. A spinning mill turns fibre into yarn. A knitting mill turns yarn into knitted fabric. A weaving mill turns yarn into woven fabric. A dyeing and finishing mill takes greige fabric, knitted or woven, and gives it colour and its final feel. Each of these four jobs uses different machines, buys a different raw material, and sells a different product. A real company might run only one of these four processes, or several combined under one roof. Knowing which one you are talking to changes what it can quote you, what it needs from you to start, and what it hands over next.

Spinning millKnitting millWeaving millDyeing andfinishing millGarment factory
The four textile mill processes. Spinning always comes first; then either knitting or weaving, never both by the same machines; then dyeing and finishing, which can take fabric from either route.
What you meet in real life

The same word "mill" hides four different businesses, and a real company can combine any of them

A supplier list rarely spells out which of the four jobs a company does. You have to work it out from what it buys and what it sells.

What can differThe shapes you will meetWhy it matters to you
Spinning millBuys fibre (cotton, polyester, or a blend) by weight; sells yarn by weight. Nile Spinning is this kind of mill, selling cotton yarn to knitting mills.If you need fabric, a spinning mill alone cannot help you; it has no knitting or weaving machines.
Knitting millBuys yarn; sells knitted, greige fabric, usually by weight. Used for T-shirts, underwear and sportswear. Rowad Knits is this kind of mill.A knitting mill's machines loop yarn; they cannot weave, so it cannot supply woven fabric such as denim or shirting.
Weaving millBuys yarn, often two kinds (warp and weft); sells woven, greige fabric, usually by the metre rather than by weight. Suez Denim is this kind of mill, weaving denim.A weaving mill's looms cross threads; they cannot loop yarn, so it cannot supply knitted fabric such as jersey.
Dyeing and finishing millBuys greige fabric, knitted or woven; sells finished, coloured fabric, usually by weight for knits. Can be a separate company or combined with a knitting or weaving mill under one roof. Colorline Dyeing is a separate dyeing and finishing mill.If the mill you are speaking to has no dyeing line, it cannot deliver finished colour, whatever it wove or knitted.
Combined (integrated) millOne company runs two or more of the four processes, for example a knitting mill that also dyes what it knits. A domestic knit-to-garment business often combines knitting, dyeing and sewing on one site to serve a local market quickly.A combined mill hands you fewer companies to manage for that part of the chain, but you still confirm which processes it actually runs; not every combined mill runs all four.
The case we follow

Order A's fabric, a knit, passes through a knitting mill and a dyeing mill; Order B's jeans fabric, a woven, would use a weaving mill instead

Order A's fabric is knitted cotton jersey, because a T-shirt is a knitted garment. Its fabric journey is: fibre, spun into yarn by Nile Spinning; the yarn knitted into greige fabric by Rowad Knits; the greige fabric dyed and finished by Colorline Dyeing; the finished fabric delivered to Delta Garments for cutting and sewing.

StageCompany in Order AWhat it buysWhat it sells
SpinningNile SpinningCotton fibre, by weightCotton yarn, by weight
KnittingRowad KnitsYarn, from Nile SpinningGreige knitted fabric, by weight
Dyeing and finishingColorline DyeingGreige knitted fabric, from Rowad KnitsFinished, dyed fabric, by weight
Garment factoryDelta GarmentsFinished fabric, from Colorline DyeingFinished T-shirts

Compare this briefly with what a woven product needs, such as Order B's jeans. Jeans use woven denim, not knitted jersey, so the step after spinning would be Suez Denim weaving the yarn into greige denim on a loom, using both warp and weft yarn, in place of Rowad Knits' knitting step; a further, separate dyeing and finishing company would then treat that greige denim, the same kind of hand-off Colorline Dyeing performs for Order A. Suez Denim's fabric is measured and sold by the metre, not by weight, unlike Rowad Knits' knitted fabric. The rest of the chain, from dyeing onward, works the same way for either fabric type.

The worked number

A simple unit-check: Order A's total fabric, divided by pieces, gives the average fabric per T-shirt

Order A uses about 3,000 kg of knitted cotton jersey fabric for its 15,000 pieces (the front-matter order box, first set out in lesson 1.1). Dividing the total fabric by the number of pieces gives a simple order-level average, not the detailed technical calculation a factory uses to plan cutting (that full calculation, including marker wastage, is covered in a later course).

Total fabric for the order: 3,000 kg
Pieces in the order: 15,000
Average fabric per T-shirt: 3,000 kg ÷ 15,000 pieces = 0.2 kg (200 g) of fabric per T-shirt
3,000 kg of fabric, for 15,000 T-shirtsAbout 0.2 kg (200 g) of fabric goes into each T-shirt, on average across the order
An order-level average, not a cutting-room figure. This 0.2 kg per piece is a simple check on the two numbers already in the order box; the exact per-piece figure a cutting room uses accounts for marker wastage and is higher.
The method

Three questions that tell you which mill process, or processes, a company actually runs

To work out which mill process (or processes) a company performs, do not rely on the word "textile" or "mill" alone:

  1. Ask what it buys. Fibre means it is a spinning mill (or starts there); yarn means it is a knitting or weaving mill; greige fabric means it is a dyeing and finishing mill. This tells you where the company's part of the chain starts.
  2. Ask what it sells. Yarn, greige fabric, or finished (dyed) fabric tells you where the company's part of the chain stops.
  3. Check whether what it buys and sells span more than one process. If a company buys fibre and sells finished, dyed fabric, it is a combined or integrated mill across spinning, knitting or weaving, and dyeing (lesson 2.2 covers this integration spectrum in depth).
  4. Confirm knitted or woven fabric specifically, never assume. A company that weaves cannot knit, and a company that knits cannot weave; the machines are different, so ask which one it has before assuming it can meet your fabric type.
The trap

A common mistake is assuming every "mill" does the same thing, or that a weaving mill can supply knitted fabric

A common mistake is assuming every company called a mill does the same job, or assuming a weaving mill can be asked for knitted fabric, or a knitting mill for woven fabric. The machinery is fundamentally different between knitting and weaving: a knitting mill loops yarn on knitting machines, and a weaving mill crosses warp and weft threads on looms. A mill built for one of these two processes normally cannot produce the other, no matter how the sales team describes its capability. This mistake wastes time chasing a quotation the mill was never able to give, and can delay the fabric booking stage of the order's timeline.

06In plain words

The word "mill" can mean four different jobs. One kind spins fibre into yarn. One kind knits yarn into fabric by looping it. One kind weaves yarn into fabric by crossing threads on a loom. One kind dyes and finishes fabric, giving it colour and its final feel. A real company might do only one of these jobs, or several combined. A mill built to knit cannot weave, and a mill built to weave cannot knit; the machines are different. Before you trust a mill to supply your fabric, find out exactly what it buys and what it sells, so you know which job, or jobs, it actually does.

07Quick check
  • Spinning turns fibre into yarn. Knitting and weaving both turn yarn into fabric, but by different, incompatible machines.
  • Dyeing and finishing takes greige (undyed) fabric, from either a knitting or a weaving mill, and gives it colour and its final treatment.
  • Knitted fabric is usually sold by weight; woven fabric is usually sold by the metre.
  • A combined mill runs more than one of the four processes; check which ones, do not assume all four.
  • Ask what a mill buys and what it sells before you trust its description of itself.
08Workplace scenario

A junior merchandiser at Delta Garments checks whether Nile Textile Mills can supply finished, dyed knitted fabric for a backup T-shirt order

A new junior merchandiser at Delta Garments is asked to find a backup fabric supplier for the T-shirt order, in case Rowad Knits and Colorline Dyeing cannot cover a sudden increase in quantity. A supplier list includes a company called Nile Textile Mills, described only as producing "textile fabric". The merchandiser requests its capability sheet before contacting it.

The capability sheet reads:

Facilities. 40,000-spindle ring spinning plant; weaving looms (denim and twill); no knitting or dyeing capacity on site.

Can Nile Textile Mills supply the finished, dyed knitted fabric Delta Garments needs for the T-shirt order? Decide before opening the answer.

Show decision

No, Nile Textile Mills cannot supply this fabric. Two facts on its own capability sheet decide this.

First, it has no knitting capacity. Its looms weave denim and twill; a T-shirt needs knitted fabric, made by looping yarn on knitting machines, which this mill does not have. A weaving mill cannot produce knitted fabric, whatever else it can do.

Second, it has no dyeing capacity. Even if Nile Textile Mills could somehow supply greige knitted fabric, it states plainly that it has no dyeing capacity, so it could not deliver finished, coloured fabric on its own either way.

Nile Textile Mills is a real combination: a spinning mill plus a weaving mill. It could be a supplier for a woven product's yarn or greige fabric, such as a denim order, or it would need to be paired with a separate knitting mill and a separate dyeing and finishing mill to reach finished knitted fabric. As described, it is not a match for this order's need. Approaching it as a knitted-fabric supplier would have wasted several days before this mismatch was discovered, delaying the fabric booking stage of the order's timeline.

09What it costs

Approaching the wrong type of mill wastes sourcing time, not just money

This lesson is not calculation-heavy, so the cost here is mainly time, not a fabricated dollar figure. Reading a capability sheet carefully, as the merchandiser did above, takes minutes. Sending a fabric enquiry to a mill that cannot actually knit or dye, waiting for its reply, and then discovering the mismatch can take days, because sourcing teams and mills often reply slowly to enquiries that are not urgent to them.

Time to read a capability sheet properly: about 10 minutes
Time typically lost chasing an unsuitable mill before the mismatch is found: several days

A delay of even a few days at the sourcing stage can push into the fabric booking stage of Order A's 16-week timeline (lesson 1.5), which already allows only 5 of those 16 weeks for fabric. Time lost here is time the factory does not get back later in the schedule.

10Working template

Company directory: record which mill process (or processes) each company runs

Add a "which mill processes this company runs" column to your company directory for every fabric supplier you deal with or are considering. Fill it in from what the company buys and sells, not from its own marketing description.

QuestionOrder A's mill, Colorline Dyeing (filled in)Your mill
What does it buy?Greige knitted fabric, from Rowad Knits
What does it sell?Finished, dyed and finished knitted fabric, by weight
Spinning, knitting, weaving, or dyeing and finishing?Dyeing and finishing only
Combined with any other process?No, a separate company from Rowad Knits
Can it supply woven fabric?Not applicable; it only dyes and finishes fabric already made

Download the Company directory (Excel)

11Check yourself

1. What does a spinning mill buy, and what does it sell?

2. Why can't a weaving mill usually produce the fabric for a T-shirt?

3. If a mill's capability sheet says it does spinning and weaving but not dyeing, can it deliver finished, coloured fabric on its own?

12Glossary
ENARFRTRMeaning
Millمصنع النسيجUsine textileTekstil fabrikasıA company that makes yarn or fabric: a spinning mill, a knitting mill, a weaving mill, a dyeing mill.
Knitted fabricقماش تريكوTissu mailleÖrme kumaşFabric made by looping the yarn. Stretchy. Used for T-shirts and underwear.
Woven fabricقماش منسوجTissu chaîne et trameDokuma kumaşFabric made by crossing threads on a loom. Used for shirts and jeans.
Yarnخيط (غزل)FilİplikFibre twisted into a continuous thread. Fabric is made from yarn.
Spinning millمصنع غزلFilatureİplik fabrikasıA company that spins fibre into yarn, buying fibre by weight and selling yarn by weight.
Knitting millمصنع تريكوUsine de tricotageÖrme fabrikasıA company that knits yarn into knitted fabric by looping it, buying yarn and selling greige fabric, usually by weight.
Weaving millمصنع نسج (نسيج)Usine de tissageDokuma fabrikasıA company that weaves yarn into woven fabric on a loom, buying yarn and selling greige fabric, usually by the metre.
Greige fabricقماش خام (جريج)Tissu écru (grège)Ham (gri) kumaşFabric, knitted or woven, that has not yet been dyed or finished.
Warp and weftخيوط السدى واللحمةChaîne et trameÇözgü ve atkıThe two sets of yarn crossed on a loom to make woven fabric: warp runs the length, weft runs across it.
LoomنولMétier à tisserDokuma tezgahıThe machine a weaving mill uses to cross warp and weft yarn into woven fabric.
Combined millمصنع نسيج متعدد العملياتUsine textile intégréeEntegre tekstil fabrikasıOne company performing more than one of the four textile mill processes.
Capability sheetورقة القدرات الإنتاجيةFiche de capacitésKapasite belgesiA document a mill sends listing the machines, processes and capacity it actually has on site.
Dyeing and finishingالصباغة والتجهيزTeinture et finissageBoya ve terbiyeGiving the fabric its colour and its final feel or performance.
13Next

Lesson 2.5: Identify the company

You now know that "mill" can mean four different jobs done to fabric. The next lesson gives you real company descriptions and asks you to identify what each one actually does, using everything this course has taught about the kinds of companies in the trade. Back to the course map

14Ladder

RecognizeName the four textile mill processes and say what each does to the material.
ConnectSee how what a mill buys and sells tells you which process, or processes, it runs.
CompareTell a knitting mill from a weaving mill, and a single-process mill from a combined one.
DecideRead a real capability sheet and decide whether a mill can meet a specific fabric need.