What is the difference between Letter press and flexography?

Answer 1

Antara perbezaannya adalah dari segi kaedah cetakan dan juga plate.

1) Plate.

- Setiap plate yang digunakan untuk mencetak mempunyai kawasan image dan non-image, sama seperti mana2 kaedah cetakan. cuma yang membezakannya ialah, kawasan image dan non-image bagi plate offset adalah sama tinggi (pada hakikatnya, bahagian image sedikit tinggi), manakala plate flekso pula mempunyai bahagian imej yang timbul berbanding kawasan non-image.


2) Cetakan.

- Mesin offset mempunyai 3 silinder utama iaitu silinder plate, blanket dan tekanan. mesin offset mempunyai banyak penggelek dakwat, dan cetakannya melibat sistem pelembap.

- Mesin flekso mempunyai 2 silinder utama iaitu silinder plate dan silinder tekanan. Mesin flekso mempunyai roller dakwat yang khusus, iaitu penggelek anilox. Anilox memainkan peranan penting dalam menentukan kadar penggunaan dakwat untuk mencetak. Mesin flekso tidak menggunakan sistem pelembap untuk mencetak.


-ahyarzulkefli ex-ilp nibong tebal2009. maz_viaemail@Yahoo.co.nz

Answer 2

Letterpress is a relief printing technique where raised portions of a plate are coated with ink and pressed onto the printing surface. Flexography is a modern form of relief printing that uses flexible rubber or polymer plates and is commonly used for packaging and labeling materials. Overall, letterpress is more traditional and labor-intensive, while flexography is more efficient for mass production.

Answer 3

Letterpress refers generically to a printing technology where image areas are raised on a plate in relief from non-image area. The plate's raised parts are coated with ink and pressed against the substrate (paper) for printing.

Flexography is a special case where:

1- The press uses the rotary principles: the plate is wrapped around a rotating printing cylinder.

2- The plates are made of deformable material, rubber or soft plastic.

3- Special low-viscosity inks are used.

4- The inking system is special, using an intermediate inking roller.

In Letterpress, the plate (flat-bet or roller) is hard, ink is more pasty, inking system (for rotary Letterpres presses) is similar to offset.