Ciba Specialty Chemicals Corporation

Upm-kymmene Oyj Corporation

Jujo Thermal Oy

Mika Anttila

Anna-Liisa Tammi

Elina Mattila

Olli Hakkila

Pertti Ahonen

Markku Merilahti

Arja Pylväs

A method for producing linerless non-top coated thermal printable material. The method includes preparing thermal printable material by receiving base printable material, wherein base printable material being 75% w/w to 85% w/w of linerless non-top coated thermal printable material; applying heat-resistant material on base printable material, wherein heat-resistant material being 12% w/w to 18% w/w of linerless non-top coated thermal printable material; applying heat-sensitive material on heat-resistant material to produce thermal printable material, wherein heat-sensitive material being 3% w/w to 7% w/w of linerless non-top coated thermal printable material; and subjecting thermal printable material to supercalendering operation, supercalendering operation comprising passing thermal printable material through at least two calender rolls at temperature ranging from 30° C. to 80° C. rolling at speed ranging from 150 m/min to 500 m/min at pressure ranging from 50 bar to 120 bar to obtain linerless non-top coated thermal printable material.

Linerless non-top coated thermal printable material, method for producing the same and thermal label

The invention refers to a printed substrate comprising a substrate with an oleophilic surface having a Gurley-Hill permeance value bigger than 5000 s/100 ml, the ink printed on the substrate having an IGT ink set-off value bigger than 0.60 print density units at 30 s delay time. The invention also refers to a printing method performed in at least one printing unit under use of following substrate/ink combination:

Printed substrate and printing method

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Masku, Finland

Mika Anttila