{"product_id":"new-brothread-uv-color-changing-embroidery-thread-kit-8-spools-30wt-polyester-machine-ready","title":"New brothread UV Colour Changing Embroidery Thread Kit — 8 Spools 30WT Polyester, Machine-Ready","description":"\u003cp\u003e\u003cstrong\u003eNew brothread 8 Spools UV Colour Changing Embroidery Thread Kit is a set of 100% polyester 30WT machine threads that visibly shift colour when exposed to sunlight or UV light, then revert indoors.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis kit contains eight spools of UV-reactive embroidery thread designed for machine and hand work. Each spool produces a distinct colour transformation under UV light, making it easy to add dynamic accents to apparel, caps, home textiles, bags and pet items. The threads are 30WT (150D\/2), durable for machine embroidery and quilting, and formulated from first-class polyester to remain soft next to skin.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the colour change work and how long does it last?\u003c\/h3\u003e\n\u003cp\u003eThe thread contains UV-reactive dyes that shift hues when exposed to sunlight or UV lamps. While under UV, the changed colour is stable; once the UV source is removed, the thread reverts to its original shade within minutes. The effect is reversible and repeatable, suitable for both subtle accents and bold outdoor details.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eColour shift activates under sunlight or any UV light source.\u003c\/li\u003e\n  \u003cli\u003eChanged colour remains while UV exposure continues.\u003c\/li\u003e\n  \u003cli\u003eReverts to original colour after a few minutes indoors without UV.\u003c\/li\u003e\n  \u003cli\u003eRepeatable through multiple UV cycles without special treatment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill these threads work in my embroidery machine and how should I thread them?\u003c\/h3\u003e\n\u003cp\u003eYes — the 30WT (150D\/2) weight is compatible with most home and commercial embroidery machines. To reduce breakage and friction, use large-eye needles such as SCHMETZ Topstitch 90\/14 or Organ HAX1 SP 90\/14, and keep machine tension moderate. For best results, test a sample stitch before finishing a project.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRecommended needle: size 90\/14 large-eye needles.\u003c\/li\u003e\n  \u003cli\u003eUse moderate machine tension and a stabiliser appropriate for your fabric.\u003c\/li\u003e\n  \u003cli\u003eRun a pre-test swatch to set stitch density and speed.\u003c\/li\u003e\n  \u003cli\u003eApply non-staining silicone spray or sew-er’s aid sparingly if needed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I care for finished items made with UV colour changing thread?\u003c\/h3\u003e\n\u003cp\u003eThis polyester thread is washable, but follow temperature limits to protect the dye. Avoid bleaching and steam ironing; dry ironing is allowed but not above 176°F (80°C). Washing in water under 104°F (40°C) will preserve the thread and its changing properties over many cycles.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDo not bleach; avoid steam ironing and dry clean if possible.\u003c\/li\u003e\n  \u003cli\u003eMax dry iron temperature: 176°F (80°C).\u003c\/li\u003e\n  \u003cli\u003eWash water should not exceed 104°F (40°C).\u003c\/li\u003e\n  \u003cli\u003ePatience: colour change is UV-dependent, not permanent fading.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat projects show off these threads best?\u003c\/h3\u003e\n\u003cp\u003eDenser stitches and multiple outline passes make the UV shift more visible, so use these threads for emblems, logos, caps, outerwear trims, and children’s or pet gear that sees sunlight. The effect is especially striking on outdoor-facing surfaces and layered stitchwork where contrast and texture amplify the change.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eOutdoor caps, backpacks, and jacket logos for visible UV reaction.\u003c\/li\u003e\n  \u003cli\u003eChildren’s apparel and pet accessories for playful colour surprises.\u003c\/li\u003e\n  \u003cli\u003eQuilting and appliqué with dense stitch areas to maximize impact.\u003c\/li\u003e\n  \u003cli\u003eDecorative seams and topstitching where light will hit the threads.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Makers, small-batch apparel brands, embroidery hobbyists, quilters and crafters who want reversible, eye-catching effects without specialty inks. If you work with machine embroidery or hand-detailing and want a washable, skin-friendly polyester thread that adds interactive visual interest outdoors, this New brothread 8-spool kit gives eight distinct UV-reactive colours in a durable 30WT format.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I machine wash items with this UV thread?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. Wash under 104°F (40°C); avoid bleach. The thread’s UV effect is unaffected by normal washing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will the colour change permanently after repeated UV exposure?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. The colour change is reversible; it returns to the original shade minutes after UV is removed.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"New brothread","offers":[{"title":"Default Title","offer_id":55294269686097,"sku":"B09GVL1KVW","price":44.63,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/5567\/3681\/files\/new-brothread-front-packaging-8-spools.jpg?v=1791927979","url":"https:\/\/craftiche.co.uk\/products\/new-brothread-uv-color-changing-embroidery-thread-kit-8-spools-30wt-polyester-machine-ready","provider":"Craftiche","version":"1.0","type":"link"}