save material flint group narrow web helps to reduce material cost when printing on synthetic...

Save materialFlint Group Narrow Web helps to reduce material costSave materialFlint Group Narrow Web helps to reduce material cost

When printing on synthetic substrates how to get adhesion?– Adhesion through chemical bonding

– Ink resins react with surface of substrate

– Surface tension of material needs to be higher than the ink to achieve good lay & physical contact


Corona treating of material– Will create reactive groups in top micro-layer of material that enhance

adhesion

– Will increase surface tension that can enhance lay & physical contact between ink & substrate

– When treated in-line just prior to print, corona treatment will burn away plasticizers or other additives that are harmful for adhesion

– Reactive groups will not remain on surface and will diffuse into polymer with time

– Thus corona treating will only last 3-6 months


Top Coated material benefits– Will create reactive groups that can be tailored to enhance adhesion

– Will increase surface tension that enhance lay & physical contact between ink & substrate

– Reactive groups of coating will remain on surface Positive effect will remain over long time


Disadvantages with Top Coated– The top coating has no adhesion to material, it’s impossible to get ink to

adhere

– Some type of top coatings are not compatible with printing inks

– Poor applied top coat makes ink pinhole, not having good lay

– Top Coated Materials are 10-20% more expensive


New universal inks works better without Top Coating on synthetic material

– Excellent adhesion on known substrate structure

– 30% cheaper material

– Better performance with print quality (solids with no pinholes)

– Will require corona treatment in line

Examples based on customer experience & internal testing:– UvoNova

– Flexocure Gemini & Flexocure FORCE

– Uvoscreen

– CombiWhite

– Hydrofilm 4000

Universal Inks improves profitUniversal Inks improves profit

WB Flexo UV Flexo UV LP UV Offset

PS Paper label ● ● ● ● ● ● ● ● ● ● ●

PS Film Labels ● ● ● ● ● ● ● ● ● ● ● ●

Wrap around film label ● ● ● ● ● ● ● ● ● ● ● ●

In Mould Label ● ● ● ● ● ● ● ● ● ● ●

Sleeves ● ● ● ● ● ● ● ●

Folding Carton ● ● ● ● ● ● ● ● ● ●

Sachets & Pouches ● ● ● ● ● ● ● ● ● ● ●

Flexible Packaging ● ● ● ● ● ● ●

● ● ● Highly recommended ● Limited use - Not recommended (based on 1 ink for all applications)

Save MaterialModern UV Flexo inks helps to reduce material costSave MaterialModern UV Flexo inks helps to reduce material cost

When printing UV Flexo on paper substrates how to get good gloss & strength?

– Historically UV Flexo have required top class paper substrates with high gloss coating to function.

– Paper structure is not always closed and High Gloss Papers also absorb thin liquids

– Absorption of monomers & photo initiators result in

• poor gloss,

• poor print quality,

• set of in press even at low printing speeds

Universal UV Flexo InkCross Section Of a Coated Label PaperUniversal UV Flexo InkCross Section Of a Coated Label Paper

Coating (Single/Double) Reverse Side Treatment

Some UV flexo Inks absorbs easy into paper

Flexocure Gemini & Flexocure

Shows excellent Hold out


What will good hold out bring me?– Much better gloss, colour strength

– Better print quality , sharper dots

– Consistent print quality irrespective of press speed

– Possibility to use cheaper paper types

– Consistent quality even if paper batches are changing

Save MaterialWhat will good hold out bring me?Save MaterialWhat will good hold out bring me?

Benefit Value

Much better gloss, colour strength Happy customers that return

Better print quality, sharper dots Customer that pay more for professional print quality

Consistent print quality irrespective of press speed No rejections and less waste

Possibility to use cheaper paper types Savings in material cost

Consistent quality even if paper batches are changing

No rejections, lower overhead cost


How much does this improve my profit?– Lower cost for equivalent gloss / print quality

(cost index is Cast coated 100, On-l MC 71,8, Off-l MC 87,5)

– Higher productivity as 1 ink for all substrates / papers

– Every hour press is not running increase “overhead” cost per job that do run (best estimate is 100 - 150 € per hour)

– Every time press are washed 0 -0,5 kilo of ink is wasted. Per unit! (best estimate : 5 - 10 € per unit & intake)

save material flint group narrow web helps to reduce material cost when printing on synthetic...

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