23年 4月 10日 1

What is UV What is UV curing system ?curing system ?

SOLTECH LTD.SOLTECH LTD.

23年 4月 10日 2

AdvantagesAdvantages

Energy savingEnergy saving No volatile solventNo volatile solvent Very short cure timeVery short cure time No heatNo heat One pack systemOne pack system Space savingSpace saving

23年 4月 10日 3

UVUV(200~400nm)(200~400nm) curing curing

Photo-initiator P. (free Photo-initiator P. (free radicals)radicals)

Free radical + monomer + oligomerFree radical + monomer + oligomer Cross linked polymer networkCross linked polymer network

UV

23年 4月 10日 4

OligomerOligomer

Epoxy acrylateEpoxy acrylate Urethane acrylateUrethane acrylate Polyester acrylatePolyester acrylate Acrylic acrylateAcrylic acrylate Amino acrylateAmino acrylate

Epoxy acrylate (1)Epoxy acrylate (1)

Paper coatingPaper coating Overprint varnishOverprint varnish Wood coatingWood coating Ink application (screen , offset)Ink application (screen , offset) Solder resist inkSolder resist ink

Chemical resistance , fast cure and hardness

Epoxy acrylate (2)Epoxy acrylate (2) BPA epoxy acrylate (Solmer E 120,145,146,1686BPA epoxy acrylate (Solmer E 120,145,146,1686……)) Paper and wood coatingPaper and wood coating Acrylate of epoxydized oil (Solmer E 186Acrylate of epoxydized oil (Solmer E 186……)) ink applicationink application Modified epoxy acrylate (Solmer E 1701,1702,1703..)Modified epoxy acrylate (Solmer E 1701,1702,1703..) screen ink , paper and woodscreen ink , paper and wood Novolac epoxy acrylate (Solmer E 1626,1636,1656..)Novolac epoxy acrylate (Solmer E 1626,1636,1656..) solder resist , hard coatingsolder resist , hard coating Acid modified Epoxy Acrylate (Solmer E 1695Acid modified Epoxy Acrylate (Solmer E 1695……)) PSR , metal coatingPSR , metal coating

Urethane Acrylate (1)Urethane Acrylate (1) Toughness , flexibility , adhesion and non-Toughness , flexibility , adhesion and non-

yellowingyellowing

Plastic and film coatingPlastic and film coating Floor tile coatingFloor tile coating Screen inkScreen ink PVC floor and wood coatingPVC floor and wood coating AdhesiveAdhesive Anti-fog coatingAnti-fog coating

Urethane Acrylate (2)Urethane Acrylate (2) Polyester type (Solmer U 584, 594, 580Polyester type (Solmer U 584, 594, 580……)) adhesion , toughnessadhesion , toughness Polyether type (Solmer U 530, 564Polyether type (Solmer U 530, 564……)) flexibility , fast cureflexibility , fast cure Others (Solmer U 522, 522B, 520, 5260Others (Solmer U 522, 522B, 520, 5260……)) fast cure , hardnessfast cure , hardness

Polyester Acrylate Polyester Acrylate Adhesion , pigment-wetting , low viscosityAdhesion , pigment-wetting , low viscosity Offset and screen inkOffset and screen ink Solmer P 236Solmer P 236…… Etching resistEtching resist Solmer P 270,271,272Solmer P 270,271,272…… Paper and Wood coatingPaper and Wood coating Solmer P 280,281Solmer P 280,281…… Flexo inkFlexo ink Solmer P 280,281Solmer P 280,281…… Laminating adhesiveLaminating adhesive Solmer P 220Solmer P 220……

Acrylic acrylateAcrylic acrylate Adhesion , solvent resist , non-yellowingAdhesion , solvent resist , non-yellowing Plastic coatingPlastic coating Overprint varnishOverprint varnish AdhesiveAdhesive Solmer A 345,364,3710Solmer A 345,364,3710

Amino acrylateAmino acrylate

Improve UV cure responseImprove UV cure response Paper and Wood coatingPaper and Wood coating Screen inkScreen ink Solmer Z 115, 225Solmer Z 115, 225

AdditiveAdditive Silicone Acrylate (Solmer Z 9135, 9136Silicone Acrylate (Solmer Z 9135, 9136……)) slip and substrate wettingslip and substrate wetting Adhesion promoter (Solmer Z 9166, 9167)Adhesion promoter (Solmer Z 9166, 9167) PCB ink , metal and plastic coatingPCB ink , metal and plastic coating Non-silicone leveling agent (Solmer Z 9070)Non-silicone leveling agent (Solmer Z 9070) screen inkscreen ink

Monomer (1)Monomer (1)

How to select monomer? How to select monomer? Viscosity and SolubilityViscosity and Solubility VolatilityVolatility Odor and toxic propertyOdor and toxic property Reactivity and functionalityReactivity and functionality Percent of shrinkagePercent of shrinkage

Monomer (2)Monomer (2)

Mono : NVP, Styrene, IBXA, PEAMono : NVP, Styrene, IBXA, PEA…… Di : TPGDA, HDDA, TTEGDADi : TPGDA, HDDA, TTEGDA…… Tri : TMPTA, PETATri : TMPTA, PETA Others : PE4A, DPHAOthers : PE4A, DPHA

Monomer (3)Monomer (3)

A : viscosity, reactivity, hardness, gloss, chemical A : viscosity, reactivity, hardness, gloss, chemical resistance resistance

B: flexibility, solvency, adhesionB: flexibility, solvency, adhesion

Strategy for formulationStrategy for formulation 1. Select Oligomer(s) for basic film forming 1. Select Oligomer(s) for basic film forming

propertiesproperties

2. Use Monomer for viscosity control2. Use Monomer for viscosity control

3. additives for performance fine tuning3. additives for performance fine tuning

4. photo-initiator package is critical4. photo-initiator package is critical

General principlesGeneral principles

1.Each component plays a key role in 1.Each component plays a key role in total performancetotal performance

Formulate for total performanceFormulate for total performance Optimize on performance Optimize on performance

requirementsrequirements Viscosity control, simple dilution no!Viscosity control, simple dilution no!

General principlesGeneral principles

2. formulations are sensitive to 2. formulations are sensitive to curing process parameters and curing process parameters and equipmentequipment

Use controls in experimental design Use controls in experimental design to see effects of external factorsto see effects of external factors

General principlesGeneral principles

3. cost/performance is the key3. cost/performance is the key

Raw material costsRaw material costs Volume dependencyVolume dependency Energy costsEnergy costs Labor costsLabor costs Competitive pricingCompetitive pricing

OligomersOligomers

Basic film forming propertiesBasic film forming properties

Hardness abrasion Hardness abrasion resistanceresistance

Chemical resistance scratch Chemical resistance scratch resistanceresistance

Flexibility adhesionFlexibility adhesion Toughness weatherability Toughness weatherability

OligomersOligomers

Other considerationsOther considerations

Cure speed stabilityCure speed stability Cost toxicityCost toxicity Special properties Special properties

availabilityavailability

MonomersMonomers

Viscosity reductionViscosity reduction Flexibility (monofunctional)Flexibility (monofunctional) Crosslinking (multifunctional)Crosslinking (multifunctional) May also increase speedMay also increase speed

AdditvesAdditves

Wetting pigmentWetting pigment Flow fillerFlow filler Slip temperatureSlip temperature resistanceresistance adhesionadhesion

Photo-initiatorPhoto-initiator

Cost type of systemCost type of system Pigment/color processing variablesPigment/color processing variables Film thicknessFilm thickness

ApplicationApplication

Wood , paper & board coatingWood , paper & board coating Plastic (PVC floor, ABS, PC,PP)Plastic (PVC floor, ABS, PC,PP) Adhesive (laminating, PSA)Adhesive (laminating, PSA) Ink (screen, wet & dry offset, flexo)Ink (screen, wet & dry offset, flexo)