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How to specify a Wool Yarn

What to put on an RFQ for Wool Yarn: the ratings, documents, and constraints that change the quote.

25 Oct 2026 · 3 min read · Tradinor Desk

Specification points for Wool YarnTRADINOR · FIGUREWhat to lock for Wool YarnWidth and lengthFinishColorCare and shrinkage
Put these on the RFQ for Wool Yarn before you compare prices.

A buyer searching for Wool Yarn is usually trying to stop a bad substitute. A fabric is specified by fiber, construction, weight, width, and the finish. The notes below are selection criteria for a Wool Yarn. They are not a catalog promise. Confirm every rating on the current datasheet, drawing, or test report for the revision you will receive.

What has to be true of Wool Yarn

A fabric is specified by fiber, construction, weight, width, and the finish. For a Wool Yarn, start from the duty, then the interface to the rest of the machine or the room, then the document that proves the claim. A lower price that leaves one of those blank is a different product.

Wool Yarn is easy to confuse with Yarn. If the quote could be read as either, add the line that separates them: the rating, the fitment, or the standard named below. Link the drawing number to that line so receiving inspection can reject the wrong one.

Numbers that change the quote

Line What to write for Wool Yarn
Width and length Usable width and the roll length.
Finish Preshrink, coating, water repellency, or flame retardancy, each with a test if claimed.
Color Lab dip and the light under which it is judged.
Care and shrinkage The shrinkage figure after the stated wash.
Fiber Composition, including elastane if it is there.
Construction Weave or knit, and ends and picks or GSM.

How to compare two offers

Lay both quotes for Wool Yarn on one sheet and line up width and length, finish, and color. If a cell is empty, the offer is not finished. Ask for the missing line in writing. When those match, the honest difference is lead time, the test evidence, and who carries the warranty. Do not average a fully specified Wool Yarn with a cheaper line that omitted width and length.

Documents worth having before the deposit

Ask for a hang or a test report for any flame or water claim. The file should name Wool Yarn and the revision, not only the supplier’s homepage. A factory quality certificate such as ISO 9001 can sit beside that file. It does not replace it.

Failures that show up after delivery

  • Ignoring usable width.
  • Approving a hand feel and leaving shrinkage untested.
  • Buying coated fabric when the process needs a breathable one.

On a Wool Yarn, the expensive version of the first mistake is discovering it after the goods are in the crate. Put the rejection condition in the purchase order while the supplier can still restate the offer.

A worked RFQ line

Use this shape, then replace the brackets with your duty: “Wool Yarn — State fiber, GSM, width, finish, and shrinkage.” That sentence is a template, not a rating of any brand. If a supplier’s datasheet uses different units, convert them onto this sheet so the next offer can be compared.

Where words like RoHS / CE belong

Searches often add a constraint to Wool Yarn: RoHS / CE, or OEM / custom. Keep those on this page. RoHS is a material limit. CE is a declaration that lists the rules relied on. Ask for the document that names this part number and revision. OEM or custom means a drawing, a revision, and a statement of who owns the tool. Without those, you are buying the catalog part. If you need a third constraint, add it as another line on the same drawing. A second URL that only swaps the adjective does not give a buyer a second fact.

Related in this section: how to specify Yarn.

Questions buyers actually ask

What should an RFQ for Wool Yarn include?

State fiber, GSM, width, finish, and shrinkage.

Is a cheaper Wool Yarn the same part?

Only if width and length, finish, and the documents match. A missing line is a different offer.

Do waterproof, OEM, or IP words need their own page?

No. For Wool Yarn they are extra lines on this specification. Ask for the test or the drawing that gives the word a value.