Custom printed throw blankets are a substrate-plus-method decision, not an artwork decision alone. Sublimation gives photographic, all-over color on light polyester — the dye bonds inside the fiber, so nothing cracks — while screen print lays opaque ink on the surface and works across fibers and dark grounds. Name the method, substrate, artwork spec, and wash evidence on the PO.
Consider a common scenario: a distributor with a solid throw program adds a printed line — florals, photo collages, a house-brand logo series. The factory quotes one price for \”printed throws,\” the samples arrive, and the problems follow: the photo print on a mid-tone cotton-blend throw washes out to a ghost of the artwork, the white logo on navy cracks after the first home wash, and the repeat runs at a different scale on the second colorway. None were artwork problems. The method, the substrate, and the print lines were never specified — and on a printed throw, the decoration is the product.
Key takeaways
- Sublimation bonds dye inside light-colored polyester fiber — photographic, all-over, no cracking layer — but not cotton or dark grounds: there is no white ink and the base shows through.
- Screen print lays ink on the fabric surface: it works across fibers and dark grounds, and per-unit economics improve with run size — each color is a screen — so name the color count, method, and volume on the RFQ.
- The PO print block names five lines: substrate, print method, artwork file and scale, color reference, and the wash protocol with acceptance criteria — everything else is a comment, not a spec.
- Wash-test the approval sample against the named protocol; wash durability is a PO term, not an intrinsic property of either method.
- All cost, timing, and minimum figures are per-quotation terms to confirm with the factory — the guide states none as industry standards.
What print methods do wholesale factories offer on throws?
Wholesale throw factories commonly offer three print routes: dye sublimation, screen print (flatbed for smaller runs, rotary for continuous yardage), and heat-transfer variants that behave like screen print with different tooling. The choice is governed first by the substrate — what the face fiber is — and only second by the artwork.
Dye sublimation prints the design onto transfer paper, then heat-presses it against polyester, where the dye turns to gas and bonds inside the fiber. The decisive constraint: it works best on white or light-colored polyester, or poly-blends above roughly 65% polyester — and not on 100% cotton or dark fabric, because there is no white ink and the base shows through (see Castle Ink — Sublimation Printing Explained). Nothing sits on the surface, so there is no texture, no cracking, and no peeling over time.
Screen print works the opposite way: ink is pushed through a stencil screen onto the fabric surface, one screen per color, then heat-cured for wash durability. The ink sits on the fiber in thicker layers — vibrant, opaque color that reads on light and dark grounds — and the setup economics favor volume, since each color’s screen is a fixed setup (see the screen-printing overview in Sources). Dark grounds get a white underbase printed first so the top colors stay true.
| Method | Typical fit | Conditions and watch-outs |
|---|---|---|
| Dye sublimation | Photographic and all-over prints, full-bleed edge-to-edge designs, gradients and watercolors — on polyester throws. | Substrate constraint is absolute: light-colored polyester or high-polyester blends only. Dark grounds and cotton are not sublimation jobs. Confirm the factory names the polyester content on the spec, not just \”polyester throw.\” |
| Screen print (flatbed) | Logo prints, graphic designs, limited-color artwork on throws of any fiber and on dark grounds. | One screen per color: keep the color count lean, because each added color is setup and registration cost. Ink sits on the surface — judge wash evidence on the approval sample. |
| Screen print (rotary) | Continuous repeat patterns at yardage scale — florals, geometrics, border repeats for volume programs. | Repeat size is limited by the rotary screen circumference: name the repeat dimension on the PO. Pattern placement across the finished throw needs its own approval strike-off. |
| Heat transfer / DTF-style | Short runs and multi-color logos where screen setup is not yet justified; mixed-fiber grounds. | A surface film like screen print — the same wash-evidence discipline applies. Ask how it is cured and check the hand feel on the approval sample. |
No method wins outright. A photographic sunset on white polyester is a sublimation job; a two-color logo on charcoal cotton-blend is a screen job; a continuous floral at volume is a rotary-screen job. The buyer’s error is letting the factory pick the method from the word \”printed\” alone.
How do sublimation and screen print actually compare on a throw?
Sublimation’s color lives inside polyester fiber — no surface layer, no hand-feel change, photographic detail edge to edge. Screen print’s color lives on the fabric surface — opaque ink that covers dark grounds and any fiber, with a hand feel that depends on ink weight and cure.
The comparison buyers actually need is not a ranking but a decision filter. Run each candidate program through it:
| Decision line | Sublimation | Screen print |
|---|---|---|
| Substrate | Light-colored polyester or poly-blends above roughly 65% polyester — a hard constraint, not a preference (Castle Ink, linked above). | Any fiber, any ground color — cotton, blends, synthetics, light or dark. |
| Artwork type | Photographic, gradient, all-over, full-bleed — continuous-tone detail is the method’s home ground. | Spot colors, logos, bold graphics — one screen per color, so lean color counts quote best. |
| Hand feel | Unchanged — the dye is inside the fiber. | Depends on ink weight and cure: a single-color print can feel like nothing; a heavy multi-color graphic can feel like a patch. Judge the approval sample. |
| Wash behavior | Cannot crack or peel — no surface layer — but fading discipline still applies, so name the wash protocol on the PO. | Properly cured ink withstands repeated washing; under-cured ink cracks prematurely. The cure is the spec — then wash-test the approval sample. |
| Color on dark grounds | Not a sublimation job — no white ink, base shows through. | The method’s home ground: white underbase plus spot colors on navy, charcoal, black. |
| Run-size economics | Digital workflow: no per-color screens, so short runs and many designs quote sensibly — confirm per quotation. | Per-color screen setup: per-unit cost improves with run size — confirm per quotation. |
Read the table’s last row as the commercial key: sublimation decouples design count from setup cost — the private-label shape, many SKUs per season; screen print couples design count to screen count — the volume shape, few designs at scale. Neither is cheaper in the abstract: the cheaper method is the one whose cost structure matches your program, confirmed per quotation.
Which method fits which buyer program?
Match the method to the program’s artwork, substrate, and volume — in that order. Artwork decides the method family, substrate decides whether that family is available at all, and volume decides whether the economics hold. Run the program through all three before the RFQ, not after the samples arrive.
Photographic and all-over programs — photo collages, landscape scenes, watercolor florals, full-bleed color. This is sublimation territory, and the substrate follows: the throw must be light-colored polyester or a high-polyester blend, named on the spec. If the brand story is cotton, sublimation is not the answer — the method cannot be negotiated with, only the substrate can.
Logo and corporate-gift programs — house-brand marks, two-to-four-color logos, event and hospitality branding. This is screen-print territory: opaque ink on the brand’s chosen ground color, any fiber. Keep the color count lean — each color is a screen, and registration is a QC line on the approval sample. The private-label branding workflow carries over from the OEM guide (see How OEM and Private Label Home Textile Programs Work).
Volume repeat-pattern programs — continuous florals, geometrics, and border designs at container scale. This is rotary-screen territory: the spec lines shift to repeat size, pattern placement across the finished throw, and the strike-off approved on the actual face fabric. The throw-construction guide covers the base fabrics these patterns land on (see Throw Blanket Construction Methods Explained).
Dark-ground programs — navy, charcoal, black, deep jewel tones with light artwork. Sublimation is excluded by physics; screen print with a white underbase is the route. Name the underbase on the PO — a screen and a cure pass, not a free step — and judge opacity on the approval sample under store lighting.
What goes on the print spec lines of the PO?
The PO print block has five lines, and a quotation that cannot fill all five is not a quotation — it is a conversation. Write them in this order, because each one constrains the next: substrate, method, artwork, color reference, and the wash protocol that proves the print.
1. Substrate. Face fiber and blend percentage, in test-report wording. For sublimation, this line decides whether the job is possible: light-colored polyester or a poly-blend above roughly 65%. For screen print, it decides the ink system and cure .
2. Print method, named. \”Sublimation,\” \”flatbed screen,\” \”rotary screen,\” or the transfer variant — written out, not implied. A method substitution between quotation and production is a spec change requiring a new approval sample.
3. Artwork file and scale. The production file format and resolution the factory prints from — vector for spot-color screen work, high-resolution raster for photographic sublimation — plus the print dimensions and, for repeats, the repeat size. The strike-off is approved at production scale.
4. Color reference. A physical standard, a Pantone reference, or a signed strike-off — matched to a reference, not a screen image. The color-consistency discipline applies print to print and reorder to reorder (see How Importers Keep Color Consistent Across Reorders).
5. Wash protocol with acceptance criteria. Named wash conditions, cycle count as a PO term, and what \”pass\” looks like — no cracking, no peeling, color change within the agreed grade. Sublimation cannot crack by construction but can fade; screen print can crack if under-cured (see How to Read a Textile Lab Test Report).
How do you QC a printed throw before releasing the balance?
Printed-throw QC is approval-sample QC plus wash evidence — the face, the print, and the wash result, in that order. Inspect the bulk against the signed strike-off, not the artwork file: scale, placement, color, and registration are all judged sample-to-bulk.
The print-specific checks: for screen print, feel the ink weight and edge sharpness by hand; flex the printed area — cracking at the flex lines signals under-cure; check multi-color registration against the proof. For sublimation, check color density across the full width — press variation shows as banding — and confirm all-over designs reach the specified edges. For both, check the reverse side: dye migration or strike-through is a process-control signal — judge it against the approval sample.
The wash evidence is the gate: wash the approval sample to the PO protocol before bulk sign-off, and reference that result at bulk release. The standard pre-shipment mechanics — AQL sampling, defect classification, balance discipline — carry over unchanged (see Pre-Shipment Inspection Guide for Home Textiles).
What should you confirm when requesting a quote?
Send every printed-throw RFQ with the method named and the substrate stated, because the factory cannot quote a print it cannot place on a fiber. These eight confirmations turn \”printed throws\” from a conversation into a specification — confirm them in writing before the first strike-off, not after bulk arrives.
- Substrate — face fiber and blend percentage in test-report wording; for sublimation, light-colored polyester or high-polyester blend confirmed printable.
- Print method, named — sublimation, flatbed screen, rotary screen, or transfer variant; no method substitution without a new approval sample.
- Artwork spec — production file format and resolution, print dimensions, repeat size for rotary work; the proof is approved at production scale.
- Color reference — physical standard or signed strike-off per color (screen) or full proof (sublimation); reorder matching named.
- Wash protocol with acceptance criteria — named wash conditions, cycle count as a PO term, pass/fail grades; the approval sample is washed to it before bulk sign-off.
- Hand-feel acceptance — for screen and transfer prints, the approved sample sets the ink-weight bar; bulk is judged against it.
- Cure and process control — for screen print, the cure method and its verification; for sublimation, the press conditions that prevent banding.
- Certification boundary — if the program needs OEKO-TEX, the certificate must cover the finished printed article: it tests all components including prints, but certifies chemical safety, not wash durability or hand feel (see Sources).
What do buyers ask before ordering custom printed throw blankets in bulk?
Can dye sublimation print on cotton throw blankets?
No — sublimation dye bonds with polyester fiber, and the process has no white ink, so cotton throws and dark grounds are not sublimation jobs. Light-colored polyester or poly-blends above roughly 65% polyester are the working substrate (Castle Ink, linked in Sources). For cotton or dark grounds, specify screen print or a transfer method.
Which method is better for a simple two-color logo throw?
Screen print, in most programs: two screens, opaque ink on any ground color, and per-unit economics that improve with run size. Sublimation only enters if the logo is photographic or the throw must have zero hand-feel change — and then only on light polyester. Name the color count and ground color on the RFQ.
How many wash cycles should a printed throw survive?
There is no standard number — wash durability is a PO term, not an intrinsic property. Name the wash conditions, the cycle count, and the acceptance grades on the PO, wash the approval sample to that protocol, and judge the evidence. Sublimation cannot crack by construction, but fading still needs its protocol; screen print needs its cure verified the same way.
Does OEKO-TEX certification cover the print on a throw?
The STANDARD 100 certificate is awarded only if all components meet the criteria — and the official scope explicitly includes dyes, finishes, and prints. A certified printed throw has had its print chemistry tested for harmful substances. The boundary: the certificate proves chemical safety, not wash durability, colorfastness grades, or hand feel.
Who owns the artwork and the screens for a custom print program?
Ownership is a contract term, not a default: the artwork file, the separations, and the physical screens each need a named owner, a reuse rule, and a handover clause for program moves. Write it into the OEM or private-label agreement before the first strike-off (see How OEM and Private Label Home Textiles Work). Re-cutting separations at a new factory is a cost and color-matching risk you only pay once if the files are yours.
Request a quotation
If custom printed throws are entering your program, send us the substrate and the print method — or the artwork and ground color, and we will recommend the method — with the print dimensions, color references, and the wash protocol for the approval sample. We will return a per-method quotation with the artwork spec, the proof sequence, and the wash acceptance criteria itemized — so the throws that arrive carry the artwork you approved, at the hand feel you approved, wash after wash.
Sources & Further Reading
- Castle Ink — Sublimation Printing Explained: What It Is and How It Works — dye bonds inside polyester fiber at heat; best on white/light polyester or poly-blends above ~65%; no white ink, so cotton and dark fabrics are excluded; no surface layer, so no cracking or peeling. Verified live 2026-10-04.
- Screen Printing Explained: How It Works and Why It’s Still Popular — one screen per color, heat-cured ink; per-unit cost drops as run size grows. Verified via search 2026-10-04.
- Hohenstein — OEKO-TEX® STANDARD 100 — scope covers all components including dyes, finishes, and prints; certifies harmful-substance safety only, not wash durability or hand feel. Verified live 2026-10-04.