SOLVENT BASEDSCREEN PRINTING INKS

TABLE OFCONTENTS

PAGE

03 One Component Ink Ranges

HG · J · CX · CP

04 One Component Ink Ranges

for Special Applications

RF/K · CX-AM · CXX-AM · CC ·XL · TL · PF · PK · PK-Jet · RUB ·LAB-N 33 12 13 · A

05 Ink Ranges for Processing as

One or Two Component Systems

Z/PVC · TZ · ZE 1690 · YN

06 Two Component Ink Ranges

Z · Z /GL · ZM · ZMN

07 Special Ink Ranges / Special Varnishes

Z/DD · TP 253 /L · HG 70/20 · SG 70/15 ·PK 70/36 · CP 70/31 · Z 70/114-PVC ·Z 70/76-DD-AM · Z 70/11-DD · Z 63/06-GL

08 Two Component Inks - Overview

10 Colour RangesC-MIX 2000 · Standard Colour Shades ·4 Colour Process Shades · Transparent Shades (480 colours) · Fluorescent and Phosphorescent Shades(90 + 96 colours) ·Highly Opaque Standard Shades (HD) · Bronze Colours

12 Auxiliary Agents / Additives

Thinners · Retarders · Hardeners ·Antistatic Agents · Flow Agents

15 Suitability Chart

Ink · Substrate

16 Safety and Quality

Contacts

Coates Screen Inks GmbH, Nuremberg,Germany is part of the Sun ChemicalGroup, one of the world's largestproducers of printing inks, varnishesand pigments.

We are one of the world’s leadingmanufacturers of screen and padprinting inks, focussing on thedevelopment and manufacture of highquality solvent based and UV-curingproducts for graphic and technical-industrial applications.

This brochure “Solvent Based ScreenPrinting Inks” exclusively containsinformation about our solvent basedscreen inks program, our range of colourshades and relevant additives for solventbased systems.

One of our strengths is the developmentof specific customer solutions. If youcannot find the appropriate product foryour special application in this brochure,please contact us. We have much moreto offer. Contact details are listed on thereverse side.

Should you be interested more inobtaining information about our choiceof UV-curing or pad printing inks, pleaseask for our brochures “UV-curing Screen

Printing Inks” or “Pad Printing Inks”.

For further information please visit ourwebsite www.coates.de, SN-Online

where you will find a variety ofinteresting technical articles and furtherdetailed information about our printinginks.

02

03

ONE COMPONENTINK RANGES

for CommonThermoplastics(not suitable for polyolefinesand TPE/TPU)

Ink Range HG is the first choice of onecomponent ink systems for graphic andtechnical screen applications.

Due to the well-balanced choice of rawmaterials contained HG inks are suitablefor printing on many thermoplastics(foils, boards, formed parts) rangingfrom many polystyrene types, the widerange of PVC substrates to poly-carbonate (PC) as well as acrylic glass(PMMA). In addition HG inks are alsosuitable for many paper and cardboardtypes and some powder-coatedsurfaces.

A typical technical application of HGinks is printing on pre-treated PET-foilsused for decoration of membrane switchoverlays.

HG prints exhibit good thermoplasticforming properties and are suitable foroutdoor applications.

Gloss level: high glossDrying speed: quickBroad range of applications

HGThe Versatile System

J ink range is mainly recommended fordemanding technical applications.Screen printing inks J show good alcoholresistance, high flexibility and goodthermo-forming properties. They arealso suitable for high-frequency weldingapplications, exhibit good laminationproperties and outdoor resistance.

Gloss level: mattDrying speed: quickDemanding applications

JMatt and Alcohol Resistant

CX inks show their special propertiesfor quick and stack proof printing (alsodouble-sided prints) of large amountsof plastic boards, mainly polystyrene(PS) but also rigid PVC or polycarbonate(PC). In addition CX inks can also beapplied to PVC self-adhesive foils, PET-G,acrylic glass (PMMA) as well as paperand cardboard.

CX prints show good thermoplasticforming properties and are suitable foroutdoor applications.

Gloss level: satin glossDrying speed: very quickHard, quick, suitable for forming applications

CXThe “Stacker”

For many years CP inks have beenshowing good results in printingapplications on polystyrene (PS), ABS,SAN and also on PVC, PET-G andpolycarbonate (PC) as well as on paperand cardboard materials.

Even though CP is a one-componentink system, printed layers show a verygood surface hardness and good handsweat resistance. For that reason CPinks are often used by industrial andtechnical screen printers for the de-coration of formed parts requiringexactly these properties.

CP prints show good thermoplasticforming properties and are suitable foroutdoor applications.

Gloss level: satin glossDrying speed: quickHigh degree of surface hardness

CPThe Hard Ink SystemThese inks are especially suitable for

PVC substrates and pre-treated PETfoils. To a certain extent J inks can alsobe used for other thermoplastics suchas PC and PMMA as well as somepowder-coated surfaces.

The main field of application of J inksis decoration of membrane switchoverlays (as an alternative to/or incombination with HG inks). J inks arealso often used as offset base primerfollowed by conventional offset prints.J inks are also used to aid in laminationapplications as adhesion promoterapplied on offset inks followed by foillamination.

We also offer some special adjustmentssuch as obliterating grey (J 74, lightblocking layer for double-sided stickers),an IR-permeable black (J 66/IR) as wellas some adjustments for signaturefields.

1 2 3

4 5 6

7 8 9

0

ON

OFF

LOCK

The HG ink series comprises a varietyof colour shades, such as highlytransparent colours, process colours,C-MIX 2000 colours, standard colours,highly opaque shades and even gold,silver and bronze ranges.

RUBThe Scratch Off Inks

RUB inks are a range of products forprinting of rub off layers (silver-grey,gold, black, white), e.g. for lottery tickets.RUB inks are available in various degreesof hardness and upon request also inother colour shades.

AThe Old-Timer

Developed during the early days ofscreen printing, but still successfullyused A inks dry by oxidation (byabsorption of air) and are based on alkydresin. This range of inks is mild, glossyand can be used for a variety ofapplications, however drying is very slow.Screen inks A are suitable for wood,coated surfaces, pre-coated sheetmetal, many types of plasticizer-freethermoplastics as well as duroplastics.

LAB-N 33 12 13Oven Curing System

ONE COMPONENTINK RANGESfor Special Applicationson Thermoplastics

RF/KThe Process Inks

RF/K process inks are used forreproduction of 4-colour halftones onrigid and plasticized PVC, polystyrene(PS) as well as polycarbonate and acrylicglass (PMMA). Various adjustments areavailable, e.g. colours with increaseddensity for dia-positive prints or forprocessing on large format printingequipment.

CX-AM + CXX-AMThe Speedometer Inks

CX-AM and CXX-AM are “silent”champions. Meantime you can findthem in the cockpit of millions of carsall over the world. These inks are usedto print complex and demanding scalesand decorations of speedometers andother car features on polycarbonate (PC)substrates. CX-AM is suitable for flatelements which are slightly formedafter printing, while CXX-AM hasbeen especially developed to meetthe requirements of modern formed3-dimensional objects.

Colour shades of CX-AM and CXX-AMare project-related matches and manu-factured according to very strict qualitycriteria.

CCID Cards & Co.

Laminable screen printing ink for rigidPVC used for cheque, credit, phonecards, ID cards and the like.

XLThe Mild System

XL is an extremely mild ink system forprinting on tension sensitive injectionmoulds, mainly suitable for polystyrenebut also polycarbonate (PC), PET-G oracrylic glass (PMMA).

TLFluorescent Inks

Ink range TL comprises six strongfluorescent colours. TL inks are suitablefor paper, cardboard, PS and PVC.

Fluorescent colour shades are alsoavailable in other ink ranges uponrequest.

PFPolyester & Co.

For printing onto untreated polyester,diacetate and triacetate foils, polyamideand pre-treated polyolefines.

PK + PK-JetFor Special Applications

Developed for thermoplastics such asPVC and acrylics (PMMA) and due totheir special binding agent system bothink systems are suitable for specialapplications such as printing of anextremely opaque white (PK-Jet 60/129-HD-NT), or an obliterating grey fordouble-sided stickers (colour shade 74),highly pigmented phosphorescentcolours to be printed with very coarsefabrics (PK 96/...) or PK 70/36, a highlyalcohol and fuel resistant protectivevarnish.

ONE COMPONENTSPECIAL INKS

SUMMER

SA L E

04

INK RANGES

for Processing asOne or TwoComponent Systems

Ink system Z/PVC has been especiallydeveloped for the production of highlyresistant prints on PVC stickers for gasstations and automotive applications.Meantime it is also successfully usedfor other applications, such as PC orPC/ABS front panels of white goods orfor printing of pre-treated polyolefines.

Gloss level: satin glossDrying speed: quickAlternatively: hardener ZH/N or ZH, 10:1(ZH only for indoor applications)Good weather resistance,high solvent resistance,good abrasion resistance

Z/PVCThe Tough Ink System

Z/PVC Traffic Sign Inks are a specialmodification of Z/PVC inks for printingon retro-reflecting PVC foils. This rangeis available in all common RAL trafficsign colours. Customer-specific colourshades are available upon request.

Gloss level: glossyDrying speed: medium / quickAlternatively: 10:1 ZH/NVery good outdoor resistanceHighly transparent special colourshades for traffic signs on retro-reflectingfoils.

Z/PVC (Traffic Sign Ink)Highly Weather Resistant

Naturally TZ inks also show good resultson cotton shirts. But the main purposeof this ink range are much moredemanding applications such as printingof synthetic textile materials likewindbreakers, sports bags, backpacks,umbrellas and sunshields (awnings).Due to significant differences thosematerials may have, pre-tests are alwaysessential!

Very flexible and wash resistant TZ inksalso exhibit excellent quality on artificialleather materials like Jeans labels orpolyurethane materials of trainers andsandals. In addition TZ inks can also beapplied to many TPE/TPU coatings (= SoftTouch surfaces).

In combination with hot melt adhesivesTZ inks can also show good results intextile transfer applications.

Gloss level: satin glossDrying speed: medium / quickAlternatively: hardener ZH/N or ZH, 10:1(ZH only for indoor applications)Very flexible and elastic,wash resistant,also for textile transfers

TZTextiles & More

ZE 1690 is your first choice for printingof PU foam materials. ZE 1690 is alsosuitable for various TPE/TPU coatings(=Soft Touch surfaces) as well as other,partially very special plasticized PU andEVA substrates. This range is also usedfor texti le applications such asgoalkeeper gloves. ZE 1690 also showsacceptable results on vulcanised rubber,a material with a very problematicprintability.

Gloss level: semi- glossDrying speed: mediumAlternatively: hardener ZH/N or ZH, 10:1(ZH only for indoor applications)Very flexible and elastic

ZE 1690Foam Materials and More

YN is a quite versatile ink systemoriginally developed for screen printingon packaging materials (bottles, boxes,cans, containers) made of polyolefinplastics (PP, PE). Although, meantimethese applications are increasinglycarried out with UV curing productssuch as our ink type 80UV, YN is still agood choice for conventional screenequipment.

Gloss level: glossyDrying speed: mediumAlternatively: hardener ZH, 10:1

YNPolyolefines & More

05

STOP

JJE A N SDenim CompanySince 1959

TWO COMPONENTINK RANGES

Two component ink system Z is thebest choice for difficult printing materialsrequiring high resistances againstchemicals like solvents, grease, oils andmore. Consequently Z inks arecommonly used for technical-industrialapplications such as printing on pre-treated formed parts and polyolefin (PP,PE) bottles/containers, polyamide (PA),duroplastics, front panels made ofacrylic glass (PMMA), metals and coatedsurfaces. On account of the compositionof the binding agent contained Z inksare not suitable for long-term outdoorapplications. Z inks are available in manycolour shades.

Gloss level: glossyDrying speed: mediumHardener: ZH 4 :1

ZThe Resistant Ink System

For indoor applications, such as directdecoration of flat glass materials andalso container glass, Z/GL inks are oftenan interesting alternative to energy-consuming ceramic stove inks. This inksystem exhibits very good adhesion andscratch resistance, good dishwasherresistance, a high chemical resistanceas well as good resistance againstcorrosion. C-MIX 2000 colour shadesof Z/GL ink system are suitable for mirrorcoating applications. Z/GL inks are usedfor a variety of applications such asprinting of cosmetic glass bottles,dr inking glasses, ceramic cups(promotional articles) and also fordecoration of flat glass elements(furniture industry), partitions, interiordoors, shower cabinets, displays, coverplates for TV screens and also mirrors.Sometimes, after printing behind glassZ/GL is pressed with an intermediatefoil and a second glass sheet to form alaminated safety glass. Furthermore,this ink system is also successfully usedon chromium-plated surfaces, metalsand duroplastics.

In addition to our standard colours Z/GLinks are also offered in various frostedglass effects as well as etching imitations.

Gloss level: glossyDrying speed: slowHardener: ZH/GL, ZH/02-GL, ZH/03-GL

all 20 :1

Z/GLNot Only for Glass

Ink system ZM has been especiallydeveloped using a combination of highlylightfast pigments and weather resistantbinding agents for long-term outdooruse on outdoor resistant substrates.ZM inks are suitable for metals(aluminium, stainless steel, copper,brass etc.), coated surfaces, ABS, acrylicglass (PMMA), pre-treated polyolefines(PP/PE) and duroplastics. ZM printsshow a good elasticity and are resistantagainst alkaline substances (detergents).

Gloss level: glossyDrying speed: quickHardener: ZH/N-00(ZH only for indoor applications)both hardeners 8:1

ZMWeather Resistant I

ZMN inks exhibit good outdoor resi-stance. They are an alternative to ZM inks,focussing on printing of polyolefines(PP/PE), especially crates. In additionZMN inks are also suitable for ABS,acrylic glass (PMMA), various coatedsubstrates, some chromium-platedplastics parts and metals such asaluminium. This ink range shows excellentlight fastness and weather resistance.Prints are hard and scratch proof andshow good resistances against alkalinecleaning agents and some solvents.

Gloss level: glossyDrying speed: quickHardener: ZH/N(ZH only for indoor applications)both hardeners 4:1

ZMNWeather Resistant II

Start Vorwäsche Schleudern Eco

Einweichen

Spülen

Abpumpen

Spezial

Feinwäsche

30�

40�

60�

90�

Kurz

06

SPECIAL TWOCOMPONENT INKS

Z/DD is a highly cross-linked two com-ponent system exhibiting very goodoutdoor resistance and excellent solventresistance. Z/DD inks are mainly usedfor applications requiring extremely highchemical resistance possibly combinedwith long-term outdoor resistance; acombination of high resistances youmay not be able to achieve with othertwo component inks such as Z, Z/GLor ZM and ZMN. We also offer twospecial protective varnishes Z 70/11-DDand Z 70/76-DD-AM (see chart “SpecialVarnishes”)

Gloss level: glossyDrying speed: very slowHardener: ZH/N, 3 :1

Z / DDExtremely Resistant System

Actually TP 253 L is a pad printing ink.However due to the special binder basethis ink type shows good results inscreen applications as well. Siliconerubber materials such as swimmingcaps, bracelets, soft keyboards cannotbe decorated with conventional screeninks. TP 253 L is an oven-curing specialink system suitable for printing manysilicone rubber products.

TP 253 LThe Silicone Rubber Ink

07

HG 70/20: Highly transparent. Used to adjust HG/N50 as smokyblack (dead front effect) or to brighten the highly transparentcolour shades of the HG 480 range.

SG 70/15: Alcohol and fuel resistant protective varnish for HG, CX, SG, RF-K and PK-Jet prints.

PK 70/36: Alcohol and fuel resistant protective varnish for HG, CX, SG and PK-Jet prints.

CP 70/31: Pre-print varnish for our rub off inks RUB.

Note:For information about suitable substratesfor these varnishes please kindly refer tothe relevant product data sheets of our ink rangeor contact us directly.

You cannot find the right ink for your special requirement

or application?

We have much more to offer!

Just ask us. Your contacts are listed on page 16.

SPECIAL VARNISHES

ONE COMPONENTVARNISHES

TWO COMPONENTVARNISHES

Z 70/114-PVC: Extremely solvent resistant and quick drying two componentprotective varnish for prints madewith HG, J and Z/PVC inks on PVC substrates.

Z 70/76-DD-AM: High gloss two component protective varnish for prints made with HG, J and Z/PVC inks. Shows very good alcohol, fuel and also outdoor resistance. Tough and elastic. Used for high quality automotive stickers.

Z 70/11-DD: Highly cross-linked, very chemical resistant two componentprotective varnish, also used as anti-graffiti varnish.

Z 63/06-GL: Semi-gloss, white-translucent effect varnish for printingon glass materials to produce frosted glass imitations or decorations.

Further effects such as mat or structure varnishes are availableupon request.

08

2-COMPONENTINKS

SUMMARY

09

smearing and leafing as well as good opacity andbrilliance.MG bronzes (= metal gloss) are very brilliant andhave a medium opacity.MI bronzes are mirror gloss inks for printing behindglass. Contrary to other bronzes MI bronzes areonly available in one ink range MI.In addition we offer a variety of silver, pearl-glossand interference effects.

COLOURRANGES

C-MIX 2000

Bronze Colours

The 12 semi-opaque or transparent colour shadesof the C-MIX 2000 system are suitable for theexact mixing of shades of various colour systemsor of specific corporate colour shades. Theyexhibit special suitability for matching of brilliantPantone or HKS colours. On account of thismono-pigmentation (every base colour onlycontains one pigment) easy and quick matchingof any colour sample is possible. Our database

Formula Management C-MIX 2000, which isavailable free of charge, contains guide-formulations of Pantone, HKS and RAL colours.There are separate formulations for one and fortwo component screen inks. Just like Pantoneand HKS colour swatches, formulations ofC-MIX 2000 shades are mainly suitable forprinting on white or very bright surfaces.

Brilliant, mono-pigmentedcolour shades,for mixing of Pantone, RAL, HKSand other colour shades.

4 Colour Process Shades Our process colours are:process yellow 180 (= Y), process red 181 (= M),process blue 182 (= C) process black 65 (= K).

Also transparent paste “TP” is offered in caseadjustment (=brightening) of colour brightness isnecessary.

Special shades for four colour processprinting (CMYK).

Standard HDColour Shades

All that glitters is not gold...

Standard Colour Shades

12 colour shades (10 colours, black and white)of our standard HD colour range have beenformulated with a very high concentration ofextremely opaque pigments to achieve best

The classic colour range. Strong colourshades with medium opacity.

possible opacity of screen prints. Standard HDcolours are available in many screen ink rangesof our program.

10

90 and 96 Colours 90 range: 6 colours with a high colour strengthand fluorescent effect. Available in ink range TL.Upon request these shades can also be offeredin other ink rangesFluorescent and phosphorescent colour

shades.

96 range: Phosphorescent white-yellow colouradjustments. We offer various adjustments withdifferent phosphorescence for security applicationsand decoration of advertising articles. Availablein ink range PK, and upon request also in otherink ranges.

480 Colours 8 especially pure and transparent colours forprinting on transparent materials such ascoloured LED displays of membrane switchoverlays. Available in HG ink range. Upon request

480 colours can also be offered in other screeninks.

Our standard colour shades 10, 11, 12 etc.represent our classic colour range, developedbefore Pantone and other colour systems becamepopular. Printers can choose any colour fromseveral yellow, red, blue and more shades. The

colours of this standard range mostly containmore than one pigment, exhibit high colourstrength and medium to good opacity.

Highly transparent colour shades.

Colour shades exhibiting unsurpassedopacity.

4 colour process screen printing technology(CMYK) is very suitable for reproduction of highresolution images. In addition to our specialprocess range RF/K, process colours are alsooffered in several other ink ranges.

Gold, Silver, Bronze. We offer four differentcolours: B, AB, MG and MI.B-Bronze colours are highly opaque and availableas ready-to-print adjustment or in paste or powderforms. These pastes and powders are used formixing with our E50 varnish, also available withinour ink ranges.AB-Bronzes are available as ready-to-printadjustments. They show good resistance against

For technical reasons the colour shades printed inthis brochure do not show exact colour strengthand shade. For exact colour shades please referto our colour cards, which can be obtained uponrequest!

11

For more than 50 years Coates Screen Inks GmbH screen printing inks have been successfully processed under

various conditions. Apart from a few special ink types our screen printing inks are not delivered in a ready-to-print

adjustment so that printers all over the world can fine-tune our inks to their specific local processing requirements.

Coates Screen Inks GmbH offers an extensive range of well-balanced auxiliary agents.

Below please find a summary of our most important thinners, retarders, hardeners and other useful additives.

Thinnersand Retarders

Thinners and retarders are mixtures of organicsolvents. They have different rates of evaporationand various degrees of solving power. Additionof thinners and retarders to screen inks willadjust the printing ink to meet local processingrequirements such as viscosity, screen stabilityand drying speeds.

Thinners have medium to fast evaporation rates.Addition to our screen inks is approx. 10 - 30%.If necessary a combination of thinner and retarderis also possible.

Retarders have slow to very slow evaporationrates. They are only added if, due to localprocessing conditions screen stability cannot beachieved using thinners by themselves. Usuallyretarders are used in addition to thinners.

Depending on type of retarder used, drying speedof inks may be slowed-down significantly.

AUXILIARYAGENTS /ADDITIVES

12

VD 60VD 60 is a universal thinner with goodsolving power and a medium evaporationrate. This thinner can be used as standardthinner for most one and two componentscreen inks printed with medium printingspeeds on semi-automatic and three-quarterprinting equipment.

VD 50Good solving power, medium evaporationrate. VD 50 is quicker than VD 60 and is agood alternative when an ink has to beadjusted to be slightly quicker.

VD 40

VD 40 is a quick “aggressive” thinner with ahigh solving power.

VD 30

Fast thinner, especially suitable for printing ofink types CC, J, PK-Jet and YN at high speeds.

VD 20

This is a very quick thinner with good solvingproperties suitable for processing at high printingspeeds on three-quarter and semi-automaticprinting equipment.

VD 10

VD 10 is a very mild and quick thinner of XL inkrange. VD 10 can also be used as mild alternativethinner for high speed printing of HG, CX andCP inks, or for printing onto tension-sensitiveplastics. VD 10 can also be used as mild cleaningagent, e.g. to remove misprints.

XVH

XVH is mild like VD 10, however with a mediumevaporation rate. XVH is standard thinner for XLink range and can be used as mild alternativethinner for HG, CX and CP inks. In addition it alsoshows good suitability for Z/GL inks. XVH is usedfor medium printing speeds.

Retarders

Retarder VZ 05

Retarder VZ 05 has a high solving power andmedium retardation. Among others suitable forink ranges J, TZ.

Retarder VZ 10*

Retarder VZ 10 has a good solving power andmedium retardation.

Retarder VZ 20*

Retarder VZ 20 has a medium solving power anda good retardation.

Retarder VZ 25Retarder VZ 25 shows a good retardationand good solving power.

Universally applicable, also well suited for2 component inks.

Retarder VZ 30*

Retarder VZ 30 shows a quite low solving power,but a strong retarding effect. Recommendedaddition is approx. 3-5%.

Retarder VZ 40Retarder VZ 40 has a strong retarding effectand good solving properties.

Recommended addition of this retarder isapprox. 3-10%.

VZ 40 is also suitable for 2-component inks.

Thinners

Can be used for one component inks.Not recommended for 2 component inks mixed withhardeners ZH, ZH/N, ZH/N-00.

*

13

Hardeners

PRODUCT EVAPORATION RATE FACTOR SOLVING POWER SUITABILITY

VD 10 very quick 0,12 mild all 1-Comp. inks and Z/GL

VD 20 fast 0,2 strong universal

VD 30 fast 0,22 strong universal

VD 40 fast 0,25 very strong universal

VD 50 medium 0,6 medium universal

VD 60 medium 1 medium universal

VZ 05 medium 1,15 strong CC, J, TZ

XVH medium 2 mild 1-Comp. inks and Z/GL

VZ 10 medium 2,3 medium 1-Comp. inks and Z/GL

VZ 20 slow 5 medium 1-Comp. inks and Z/GL

VZ 25 slow 5 medium universal

VZ 30 extremely slow 9 low-medium 1-Comp. inks and Z/GL

VZ 40 very slow 7 medium universal

The following chart lists the most essential properties of thinnersand retarders offered by Coates Screen Inks GmbH

Retarder Paste

Retarder pastes are “thickened” retarders whichcan be used as an alternative to or addition toliquid retarders. They are mainly used for printingof fine details requiring paste form or thixotropicviscosities of inks used. Addition of largeamounts of retarder paste will reduce glossdegree of the printing ink.

Retarder Paste LAB-N 111420/VP

LAB-N 111420/VP can be used in nearly all oursolvent based screen ink ranges.

This paste has antistatic properties. Addition toinks will result in a slightly gel-like thixotropicstructure.

Recommended addition is 5 -10%.

Retarder Paste VP/K

Retarder Paste VP/K has a strong solving powerand is suitable for ink ranges RF/K, CX, CP, SG,PK and PK-Jet. Up to 10% can be added.

Hardeners are the second constituent of twocomponent inks. They are added to the ink atratios individually calculated for each ink range.This mixing ratio, e.g. 10:1 (10 parts ink : 1 parthardener) always refers to undiluted ink. Thinneris always mixed in after hardener addition. Thechemical reaction of both components starts assoon as the ink is mixed with the hardener. Forthat reason the ink has to be processed withina certain period of time (pot life), mostly withina few hours.

Pot life varies from ink range to ink range. Inksshould not be printed after this period of timeas then the printed ink film will not exhibit therequired resistances due to the progressed crosslinkage reaction with the hardener. Followinginitial drying 2-component inks will requireperiods of up to 6 days (depending on curingtemperatures) to achieve a complete cross

linkage. In that respect store room temperaturesare also essential as the different hardener typesrequire minimum temperatures to react (seeinformation below).

Resistances can only be evaluated when thecuring reaction is complete. Please refer to thedetailed information in our product data sheetsof the individual two component ink ranges.Hardener containers must always be tightlyclosed and stored in a dry environment ashardeners react with humidity!

For detailed information regarding hardener and addition please refer to the product datasheets.

Form Addition Add using Overprintable

Flow Agents

- VM1 liquid 1-5% mixer/stirrer 2 minutes no- VM2 liquid 0,3 - 0,5% mixer/stirrer 2 minutes no- VM3 liquid 1-5% mixer/stirrer 2 minutes yes

Anti Flotation Agent liquid 3 -5% dissolver* 10 minutes yes

Antistatic Agent Wiecostat

- Wiecostat N liquid 1-5% mixer/stirrer 2 minutes yes- LAB-N 111420 paste 5-10% manually yes

Thickening powder powder 2 -3% dissolver* 10 minutes yes

Matting agent powder 3 -5% dissolver* 10 minutes yes

14

Summary Additives

Dissolvers are extremely powerful disc mixers with a high shearing power allowing very effective mixtures of certainadditives with printing inks.

Caused by interactions between substrate,printing ink and printing conditions problemssuch as bubbles, pinholes, orange peel or thelike may occur on the surface of the printing inkfilm. In order to eliminate such undesired effectscertain additives, so-called flow agents, can bemixed into the screen printing ink.

However, all additives, especially flow agentsshould be added carefully and the amounts listedbelow should not be exceeded.

Mostly only small amounts of additives aremixed into the inks. Therefore it is essentialthat these auxiliary agents are stirred invery thoroughly to achieve the requiredeffect. Most additives should be mixed intothe inks using efficient mixers/agitators/dissolvers or shakers (see chart below).

● Wiecostat N

Anti static agent in liquid form which may be added to all our screen inks in order to increasetheir conductivity. Addition is approx. 1-5 %.

● Antistatic Paste LAB-N 111420

Antistatic paste LAB-N 111420 is a slightly yellow, clear and gel-type paste, which can beeasily added to screen inks. It is suitable for all our solvent based screen ink types andmust be thoroughly stirred into the undiluted ink.

Addition is approx. 5 -10 % depending on static charge.

Static charge is often quite problematic whenprinting onto plastics. Electrostatic charge mainlyshows as ink spots or stringing (”spider threads”)at the edges of the printed image. To avoid staticcharge it is necessary that the surface of thematerials and the surrounding area are sufficiently

Anti Static Agentsconductive. Sufficient thinning of the ink and arelative humidity of 55 % and more in the printroom are essential in such cases. A furtherpossibility is addition of anti static agents tothe ink, these agents are offered in two differenttypes.

Flow Agents

*

AUXILIARYAGENTS /ADDITIVES

All our screen printing inks are in conformity with the following guidelines:

12.2012

KITTEL, Siegfried � +49 911 64 22-243Laboratory Screen Printing � +49 911 64 22-283Solvent Based Inks � siegfried.kittel@sunchemical.com

SAFETYANDQUALITY

Coates Screen Inks GmbH is a certified“Sony Green Partner”

Naturally Coates Screen Inks GmbHalso has ISO 9001 and ISO 14001

certification.

REACH New European Chemical Regulation

EN 71/3 Safety of Toys

RoHS European Directive 2011/65/EU (recast of RoHS directive 2002/95/EG), restriction on the use ofcertain hazardous substances in electrical and electronic equipment.

GADSL Global Automotive Declarable Substance List. GADSL list of forbidden substances andduty of declaration for automotive products.

EuPIA Raw material exclusion list for printing inks of the European Printing Ink Association.

Technical Support:

This brochure “Solvent Based Screen Printing Inks” is a summary of our solvent based screen ink range. For detailedinformation on individual products please refer to the relevant product data sheets. You cannot find the screen ink youwere looking for? Please contact us. We have much more to offer!

For technical assistance please contact us:

BAUER, Johann � +49 911 64 22-256Applications Department, � +49 911 64 22-283Training � johann.bauer@sunchemical.com

MULLER, Jean-Paul +33 607 51 47 06Export Sales Manager � +33 388 79 93 36

� jeanpaul.muller@sunchemical.com