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| Decision field | Free downloadbluesign System Partner ListsGlobalRemove | Free accountThreadloop Sewing Pattern DatabaseGlobalRemove | Open accessHook & Needle Diameter ReferenceGlobalRemove |
|---|---|---|---|
| Decision fit | |||
| Primary job | Check standards | Find patterns & fit | Learn techniques |
| Area | Materials | Patterns & fit | Yarn |
| Best for | Starting a bluesign-aligned supplier check | Searching current and out-of-print sewing patterns | Checking which U.S. alias the current Craft Yarn Council table gives a known metric package size before confirming project gauge |
| Know before using | Partner status is not a blanket product claim; use the current official list and confirm the exact facility, material, process, or chemical-input scope. | Community members add and quality-control the records, so confirm sizing, measurements, fabric suggestions, format, availability, errata, license, and purchase terms with the designer or publisher. Adding an entry to a stash does not provide the pattern files. Saved searches and private PDF storage are paid Plus features, and a listing or review does not establish pattern accuracy or fit. | The reference is not a dimensional measurement, manufacturer inspection, UK or Canadian conversion, steel-hook chart, tool recommendation, yarn assignment, gauge result, or proof that a proposed tool will produce the required fabric. |
| Practical access | |||
| For | Apparel brands | Makers | Makers |
| Location or jurisdiction | Global | Global | Global |
| Access | Free download | Free account | Open access |
| Format | Directory | Community | Stitch Authority |
| Source type | Official registry | Community database | Stitch Authority |
| Source and review | |||
| What the source establishes | bluesign publishes current system-partner lists and approved-input references that can support facility, material, chemical, dyeing, and finishing checks. | Threadloop's official guide describes an independent, fully crowdsourced database covering available and out-of-print sewing patterns. Its search supports pattern type, fabric type, age group, body type, cup size, level, format, file features, language, measurements, availability, and other filters; members can also track a stash, wishlist, projects, reviews, and discussions. | The lookup reproduces the current public Craft Yarn Council metric and U.S. alias rows and follows the Council's warning that company letter and number labels vary; blank aliases remain blank instead of being inferred. |
| Linked page reviewed | Jul 15, 2026 | Jul 21, 2026 | Jul 16, 2026 |
| Next review due | Oct 13, 2026 | Jan 17, 2027 | Jul 16, 2027 |
| Inspect | |||
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