Ingabe indwangu idinga ukwelashwa ngaphambi kokufakwa emgqeni wokuguqulwa kwezingubo?

In die Stoffsublimationsrolle-zu-Rolle-Prozess erfordert der Stoff typischerweise eine Vorbehandlung, insbesondere in den folgenden Situationen:

✅ Strongly recommended pre-treatment cases:

1. Natuurlike vesels of gemengde stowwe (katoen, linne, sy, poliester-katoen mengsels, ens.):

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: Ukhonkolo oluthile lwe-polymer (isixazululo sokulungiselela/ibhakede) lufakwa ebusweni bezicubu. Lolu khonkolo luthola umbala we-sublimation opholile ngesikhathi sokudluliselwa okushisayo futhi luwuqinisa ebusweni be-fiber, lwenza kube nokuhlotshiswa kwemiklamo nokubopha ezicubeni ezingekho polyester. Ngaphandle kwalokhu, umklamo ungase ungaboni kahle noma uhamba kalula.

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

Hochfarbtreue/hohe Klarheit/spezielle Effekte: Selbst bei reinen Polyesterstoffen hilft die Vorbehandlung (wie z.B. das Versteifen):

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

Incremente farba rendimento e vibranza: Le pre-tratamento strato permite plus colorante a remaner sur le fibra superficie, resultante in plus ricca, plus vibrante colores.

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.

🤔 Situasies waar voorbehandeling dalk nie nodig mag wees nie (vereis sorgvuldige assessering):

1. 100% polyester fabric + low requirements for pattern precision and vibrancy + high-quality fabric:

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 zokucwangcisa ngaphambi kokuphumeza kwiinkqubo zokugquma-ukugquma (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 a spesialisierte coating factory, potensiell resulterende in 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 fabrics:

Zwakha kakhulu ukwenza ukwelashwa ngaphambi kokusebenza: Lokhu kuyindlela ejwayelekile yokufeza ukusebenza kahle kwemibala, ukuveza, ukuhlala kwemibala, nokuzinza, ikakhulukazi ezimpahleni ezisezingeni eliphezulu nasezithombeni eziyinkimbinkimbi.

Pre-treatment kan omgesien word: Neem dit slegs versigtig in ag wanneer die stof self uitstekende prestasie het (bv. hoëdigtheid, gladde poliester satyn, sekere sportstowwe) en daar geen streng vereistes vir die finale produk se voorkoms en duursaamheid is nie. Voer kleinskaalse toetse uit om te bevestig dat drukresultate en kleurvastheid aan vereistes voldoen.

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. 💪