Ingabe indwangu idinga ukwelashwa ngaphambi kokuphrinta emgqeni wokudlulisa izimpahla?

Mu mhuzi wa sublimation wa roll-to-roll, mhuzi unowanzira kutora pre-treatment, kunyanya mumamiriro anotevera:

✅ Strongly recommended pre-treatment cases:

1. Izinhlaka zemvelo noma amafibre ahlanganisiwe (ukhaka, ilinen, isilika, ama-blends e-polyester-ukhaka, njll.):

Pre-treatment is mandatory! Sublimation ink can only vaporize at high temperatures and directly bond with polyester fibers. Natural fibers do not possess this property.

Umsebenzi wesixazululo sokulungiselela: Ukhuni oluthile lwe-polymer (isixazululo sokulungiselela/ibhakede) lufakwa ebusweni bezicubu. Le coating ibamba umbala we-sublimation opholile ngesikhathi sokudluliselwa kwe-high-temperature futhi iwufake ebusweni be-fiber, ivumela ukujolisa kwemibala nokubopha ezicubeni ezingekho polyester. Ngaphandle kwalokhu, umdwebo ungase ungaboni kahle noma uwashwe kalula.

2. Izindwangu ezidinga izinga elithile lokusebenza okuphezulu (ngisho ne-100% polyester):

Hoge kleurvastheid/hoge helderheid/speciale effecten: Zelfs voor pure polyester stoffen helpt voorbehandeling (zoals afwerking):

Beheer ink penetrasie: Voorkom dat ink te veel in die veselbinne dringt of versprei, wat lei tot skerp, duideliker patroonrande en verbeterde presisie.

Incremente farb yield und vibrancy: Die Vorbehandlungs-Schicht ermöglicht es, dass mehr Farbstoff auf der Faseroberfläche verbleibt, was zu reicheren, lebendigeren Farben führt.

Enhance certain fastness properties: Such as abrasion fastness, wash fastness, etc.

Achieve special effects: Such as a whiter base color (if the pre-treatment solution contains whitening agents), waterproof functionality, etc.

🤔 Imeko lapho ukwelashwa kwangaphambi kungase kungabi nesidingo (kudinga ukuhlolwa ngokucophelela):

1. 100% polyester weefsel + lae vereistes vir patroonpresisie en lewendigheid + hoë kwaliteit weefsel:

Pure polyester is an ideal substrate for sublimation printing, as dyes can directly bond with the fibers.

If the fabric is tightly woven, has a smooth surface, and moderate ink absorbency, and the produced items do not require extremely high color vibrancy or precision (e.g., low-end promotional shirts, internal use items), the pre-treatment step can sometimes be omitted, and printing can be performed directly on the fabric. This simplifies the process and reduces costs.

📌 Izi zinto ezikhethekileyo zokucabangela ngaphambi kokuphumeza kwiinkqubo zokugquma-ukuya-kugquma (R2R):

Online vs. offline: Pre-treatment can be performed online on R2R equipment (coating and drying immediately before printing) or offline (the entire roll of fabric is pre-treated by the fabric supplier or a specialized coating plant before printing).

Advantages of online pre-treatment:

Simplifies the process and reduces handling of semi-finished products.

More suitable for small-batch, quick-response production.

Ithoni ibhakiwe, kungenzeka ukuthi kuholele emiphumeleni engcono.

Advantages of offline pre-treatment:

Kan geoutsourcete na 'n gespesialiseerde coatingfabriek, wat moontlik kan lei tot 'n meer stabiele kwaliteit.

Iholo lempahla yokuphrinta ayidingi ukutshalwa kwezimali emishini yokulungiselela.

Suitable for large-scale standardized production.

📣 Isishwankathelo nezicebiso:

1. Non-polyester fabrics (cotton, linen, silk, blends): Pre-treatment is mandatory! Otherwise, effective transfer and color fixation cannot be achieved.

2. 100% polyester weefsels:

Kakhulu kunconywa ukwenza ukwelashwa ngaphambi: Lokhu kuyindlela ejwayelekile yokufeza ukusebenza kahle kwemibala, ukujula, ukuhlala kwemibala, nokuzinza, ikakhulukazi ezimpahleni ezisezingeni eliphezulu nezithombe eziyinkimbinkimbi.

Pre-treatment may be omitted: Only consider this cautiously when the fabric itself has excellent performance (e.g., high-density, smooth polyester satin, certain sports fabrics) and there are no stringent requirements for the final product's appearance and durability. Conduct small-scale testing to confirm that printing results and colorfastness meet requirements.

3. Roll-to-roll proses seleksie: Kies tussen aanlyn of aflyn voorbehandeling metodes gebaseer op jou toerusting konfigurasie, bestelling eienskappe (batchgrootte, afleweringstyd, kwaliteit vereistes), en koste oorwegings.

📌 Best Practices: Regardless of fabric composition, conduct rigorous pre-treatment process sample testing prior to large-scale roll-to-roll sublimation production to determine the optimal pre-treatment formulation (if required), coating quantity, drying parameters, and final printing and transfer parameters to ensure compliance with required color, clarity, and durability standards. Skipping pre-treatment testing poses significant risks and may result in substantial waste. 💪