Tinta UV Letterpress dan Formula Referensi
Karena pencetakan letterpress tidak sebagus pencetakan offset dan pencetakan flexographic, dan kecepatan pencetakan tidak sebaik pencetakan offset dan pencetakan flexographic, maka, pencetakan ini semakin jarang digunakan, dan oleh karena itu, produksi tinta letterpress pun semakin berkurang.
Untuk tinta letterpress UV, silakan merujuk ke "Tinta Fleksografi 3.5UV".
(1) Formulasi Referensi Tinta Cetak Huruf UV
EA 35
GPTA 20
TPGDA 13
BP 6
TEH 3
Pigmen 17
Pengisi 5
Lilin polietilen 1
(2) Formulasi Referensi Tinta Penandaan Huruf Merah UV
PEA 54
DDA 10
TMPTA 8
BP 3
ITX 3
EDAB 5
Pigmen Merah Riso 16
Lilin 1
(3) Formula referensi tinta letterpress hitam UV
EA 15
PEA 22
PE terklorinasi 30
GPTA 5
ITX 2
369 4
ODAB 4
Karbon hitam 16
Lilin polietilen 2
(4) Formulasi Referensi Tinta Cetak Huruf UV Putih
EA 25
HDDA 10
TPGDA 19
TPO 2
184 3
TiO2 24
Bedak 15
SiO2 2
(5) Formula referensi tinta letterpress UV
Epoksi bisakrilat 18
Resin pengkondisian 15
Monomer aktif 30
Benzofenon 8
Trietanolamina 3
Pigmen 22
Lilin polietilen 2
Bentonit 2
How formulators usually evaluate this photoinitiator topic
When technical buyers or formulators screen photoinitiators, the most useful decision frame is usually cure quality plus application fit: which package cures reliably, keeps appearance acceptable, and still works under the lamp, film thickness, and substrate conditions of the actual process.
- Match the package to the lamp first: mercury lamps, UV LEDs, and visible-light systems can rank the same photoinitiators very differently.
- Check depth cure and surface cure separately: a film that feels dry on top can still be weak underneath.
- Balance yellowing with reactivity: the strongest deep-cure route is not always the best commercial choice if color or migration risk becomes unacceptable.
- Use the final formula as the benchmark: pigment load, monomer package, and film thickness can all change the apparent ranking of the same initiator.
Recommended product references
- CHLUMINIT 819: Useful when a formulation needs stronger absorption and deeper cure support.
- CHLUMINIT 184: A classic free-radical benchmark for fast surface cure in many UV systems.
- CHLUMINIT 1173: A practical comparison point for classic short-wave UV initiation.
- CHLUMINIT ITX: A useful long-wave support route in many printing-ink packages.
FAQ for buyers and formulators
Why are blended photoinitiator packages so common?
Because one product may control yellowing or lamp fit well while another improves cure depth or line-speed performance, so the full package is often stronger than any single grade.
Should incomplete cure always be solved by adding more initiator?
Not automatically. The real limitation may be the lamp, film thickness, pigment shading, or the rest of the reactive system rather than simple under-dosage.
Hubungi Kami Sekarang!
Quick answer: In most UV systems, photoinitiators are selected by balancing wavelength fit, through-cure, color control, and line speed. Buyers usually compare a blended package instead of one isolated product.
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